opg.optica.org Open in urlscan Pro
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Submitted URL: http://echo7.bluehornet.com/ct/62335183:6f0-yWGNO:m:1:662449744:87EEFDC1A6F1300337EB173AB16B4CA7:r
Effective URL: https://opg.optica.org/ol/fulltext.cfm?uri=ol-48-1-151&id=524551&utm_medium=Email&utm_source=TopDownloads&utm_campaign=...
Submission: On February 21 via manual from US — Scanned from DE

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Journal Home About Issues in Progress Current Issue All Issues Early Posting
 * Optics Letters
 * Vol. 48,
 * Issue 1,
 * pp. 151-154
 * (2023)
 * •https://doi.org/10.1364/OL.480103


EFFICIENT AND COMPACT SOURCE OF TUNEABLE ULTRAFAST DEEP ULTRAVIOLET LASER PULSES
AT 50 KHZ REPETITION RATE

Christian Brahms and John C. Travers

Author Information

AUTHOR AFFILIATIONS

Christian Brahms* and John C. Travers

School of Engineering and Physical Sciences, Heriot-Watt University, Edinburgh,
EH14 4AS, UK

*Corresponding author: c.brahms@hw.ac.uk

ORCID

Christian Brahms   https://orcid.org/0000-0002-8009-3547 John C. Travers
  https://orcid.org/0000-0003-0350-9104

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   Christian Brahms and John C. Travers, "Efficient and compact source of
   tuneable ultrafast deep ultraviolet laser pulses at 50 kHz repetition rate,"
   Opt. Lett. 48, 151-154 (2023)
   
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    * Deep ultraviolet
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 * About this Article
   History
    * Original Manuscript: November 3, 2022
    * Revised Manuscript: November 24, 2022
    * Manuscript Accepted: November 27, 2022
    * Published: December 22, 2022


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ABSTRACT



Deep ultraviolet (DUV) laser pulses with tuneable wavelength and very short
duration are a key enabling technology for next-generation technology and
ultrafast science. Their generation has been the subject of extensive
experimental effort, but no technique demonstrated thus far has been able to
meet all requirements in one light source. Here we demonstrate a bright,
efficient, and compact source of tuneable DUV ultrafast laser pulses based on
resonant dispersive wave emission in hollow capillary fiber. In a total
footprint of only 120cm×75cm120cm×75cm, including the ytterbium-based drive
laser, we generate pulses between 208nm208nm and 363nm363nm at 50kHz50kHz
repetition rate with a total efficiency of up to 3.6%3.6%. Down-scaling of the
DUV generation reduces the required energy sufficiently to enable the generation
of two-color few-femtosecond DUV pulses.



Published by Optica Publishing Group under the terms of the Creative Commons
Attribution 4.0 License. Further distribution of this work must maintain
attribution to the author(s) and the published article's title, journal
citation, and DOI.

Laser pulses in the deep ultraviolet (DUV) (200nmto300nm200nmto300nm) with
few-femtosecond duration are a vital ingredient in next-generation technology
and experiments in ultrafast science [1–5]. Because many materials and molecular
systems exhibit strong absorption features in, ultrafast DUV light sources
enable investigation and control of new photophysical and photochemical
processes. To resonantly address transitions in a wide variety of systems,
wavelength tuneability is of critical importance. While ultrafast laser
operation and pulse compression in the DUV have been demonstrated [6,7], these
approaches do not allow for wavelength tuneability or the generation of
sufficiently short pulses. Nonlinear frequency conversion from longer-wavelength
ultrafast lasers is thus the only way to generate the required radiation.
However, established techniques suffer from complementary drawbacks. On the one
hand, crystal-based conversion schemes can provide tuneable DUV pulses, but
strong material absorption and dispersion limit the achievable lifetime and
bandwidth [8,9]. On the other hand, low-order harmonic generation in gas targets
driven by few-cycle infrared pulses can generate DUV pulses as short as 2fs2fs,
but only at the cost of very low conversion efficiency and a fixed wavelength
[10–12]. In addition, as ultrafast science moves from titanium-doped sapphire
lasers at 800nm800nm toward higher-repetition-rate sources enabled by
ytterbium-based lasers operating at 1030nm1030nm, higher harmonic orders are
required to reach the DUV which further reduces the efficiency. Resonant
dispersive wave (RDW) emission in gas-filled hollow-core waveguides promises to
fill this gap by generating continuously wavelength-tuneable ultrashort DUV
laser pulses with high efficiency, few-femtosecond duration, and near-perfect
beam quality [13–16].

Ultraviolet RDW emission was first demonstrated in small-core antiresonant
hollow fiber at low pulse energy [13], and this platform has enabled conversion
to the DUV with up to 2.5%2.5% overall efficiency [15] and 3fs3fs pulse duration
[17]. However, guidance resonances—spectral regions of high loss and strong
dispersion, which are inherent to this type of waveguide—create gaps in the
tuning range. Additionally, the small core size limits the overall pulse energy,
and because inter-pulse buildup effects due to photoionization and plasma
dynamics make the use of high (megahertz-scale) repetition rates difficult [18],
this clamps the achievable average power. Simple hollow capillary fibers (HCFs)
are free from resonances and allow for significant energy scaling of RDW
emission by increasing the core size [16]. However, this approach has so far
only been demonstrated using high-energy Ti:Sapphire lasers [16,19]. This means
the overall footprint of such light sources is large, even though the length of
the HCF itself can be reduced to as little as 15 cm by compressing the driving
pulses to the few-cycle regime [20]. In addition, depending on such complex
laser systems makes robust long-term operation and widespread adoption of
HCF-based DUV sources challenging, and operation at high repetition rate (tens
or hundreds of kilohertz) remains out of reach. Since cutting-edge ultrafast
spectroscopy experiments greatly benefit from the increased statistics offered
by high-repetition-rate sources [21], a DUV source combining the advantages of
robust ytterbium-based laser systems and RDW emission in HCF would be a very
useful scientific tool.

Here we demonstrate an efficient, high-power source of ultrafast DUV laser
pulses which employs RDW emission in HCF driven by a compact and robust
industrialized ytterbium-based pump laser. The source operates at a repetition
rate of up to 50kHz50kHz and generates pulses across the DUV, with a maximum
average power of over 363mW363mW at a central wavelength of 233nm233nm. This
corresponds to a total conversion efficiency of 3.6%3.6%. The combination of an
industrialized laser system, optimized pump-pulse compression, and the intrinsic
wavelength scaling of soliton dynamics makes the source significantly more
compact than previous HCF-based sources, with a total footprint of only
120cm×75cm120cm×75cm including the pump laser.

The light source is driven by a diode-pumped Yb:KGW laser amplifier (Light
Conversion Pharos), which produces pulses centered at 1030nm1030nm with a
duration of 220fs220fs and 200μJ of energy. The layout consists of two stages
employing stretched HCF [22], as shown in Fig. 1. The first-stage HCF serves to
broaden the bandwidth of the pulses via self-phase modulation. It has a core
diameter of 250μm, a length of 80cm, and is filled with krypton at a pressure of
5bar. The spectrally broadened pulses are compressed with dispersive mirrors and
a wedge pair and pass through a broadband variable attenuator. We obtain up to
140μJ of energy in 13 fs pulses, corresponding to 17-fold temporal compression
with 70% throughput from the laser output. The main source of energy loss is the
HCF itself (81% throughput at the fundamental limit) because the core has to be
small to keep the HCF short; relaxing the length limitation would lead to even
higher efficiency. DUV pulses are generated in a second stage. This consists of
a smaller HCF with 150μm core diameter and 65 cm length which is filled with
helium. The interplay between anomalous dispersion and the Kerr nonlinearity
leads to extreme self-compression of the pulse and the subsequent generation of
phase-matched resonant dispersive waves, the central wavelength of which is
tuneable by simply changing the gas pressure [13,16].

 

Fig. 1. Layout of the light source. A commercial laser emits 200μJ, 220 fs
pulses at 1030 nm at a repetition rate of 50 kHz. These are compressed to 13 fs
duration by spectral broadening in a first gas-filled HCF and dispersion
compensation by chirped mirrors (CMs) and a wedge pair. A half-wave plate (λ/2)
and two reflective polarizers (Pol) form a variable attenuator. DUV pulses are
generated in a second HCF filled with helium.

Download Full Size | PDF

Figure 2(a) shows normalized spectra of the generated DUV pulses as the helium
pressure is changed from 6.1 bar to 16.7 bar, with longer wavelengths being
generated at higher pressure. With this pressure range, the central wavelength
(taken here as the first moment of the spectral power density) can be
continuously tuned from 208 nm to 364 nm. The average power of these pulses at
50 kHz repetition rate is shown in Fig. 2(b). It is extracted from the spectral
power density measured with an integrating sphere and two fiber-coupled
spectrometers which have been calibrated using NIST-traceable lamps. The highest
power of 363 mW is generated at 233 nm—this corresponds to a pulse energy of
7.3μJ and a total conversion efficiency from the pump laser of 3.6 %. At longer
wavelengths, the higher nonlinearity with higher pressure reduces the maximum
energy that can be used to pump RDW emission, leading to lower average powers
(123 mW at 364 nm). At short wavelengths, the measurement is limited by the
detection range of our spectrometer (200–2500 nm); it is likely that the true
average power is higher, especially around the shortest central wavelength
generated here. For each spectrum we extract the transform-limited pulse by
taking the Fourier transform of the spectrum assuming a flat spectral phase. The
bandwidth we generate supports sub-3 fs pulse durations [full width at half
maximum (FWHM)] for all central wavelengths.

 

Fig. 2. (a) Example spectra of DUV pulses generated in the second-stage HCF.
Each curve corresponds to a different gas pressure and pump pulse energy.
Longer-wavelength spectra are generated with higher pressure and less pump
energy. (b) Average power at 50 kHz for different central wavelengths.

Download Full Size | PDF

The required length of HCF is determined by the length scale of soliton
self-compression as encoded in the fission length [16,20]. For a fixed pump
wavelength and zero-dispersion wavelength (which also approximately fixes the
wavelength of the dispersive wave), this scales as

(1)Lf∝τa2√I0,

where τ is the driving-pulse duration, I0 its intensity, and a is the HCF core
radius. In order to use all of the available energy in our compressed infrared
pulses, the core cannot be too small, since I0 is limited by the need to avoid
excessive ionization or self-focusing [16]. Therefore, short driving pulses are
required to keep the system compact. While the driving pulses in our second
stage are somewhat longer than those used for RDW emission with 800 nm lasers
[16,20], this is counteracted by an additional effect—the intrinsic wavelength
scaling of RDW emission. For a fixed HCF core size, the gas pressure required to
phase-match RDW emission at a certain wavelength increases for longer driving
wavelengths. This is illustrated in Fig. 3(a), where we plot the phase mismatch
Δβ between the higher-order soliton and the dispersive wave; the phase-matching
equations are available in the literature [14,23,24]. A helium pressure of 4 bar
leads to phase-matching at 230 nm and 170 nm for a pump pulse at 800 nm and
1030 nm, respectively. Increasing the pressure to 7.3 bar for 1030 nm matches
the RDW wavelength. The higher pressure increases the nonlinearity. At the same
time, for longer wavelengths the negative contribution to the group-velocity
dispersion (GVD) arising from the waveguide also becomes stronger [see
Fig. 3(b)]. In combination, these effects cause the fission length to decrease
quickly, scaling approximately as
(2)Lf∝τa2√I0λ30,

where λ0 is the driving wavelength. Note that this scaling rule is empirical and
approximate. Because the exact behavior is determined in part by the
higher-order dispersion of the gas, it deviates from the scaling rule.
Figure 3(c) shows a comparison between the full calculation for the fission
length [16] and applying the λ−30 scaling rule starting with the value at
800 nm. For constant pulse duration, the fission length is reduced by nearly
half when moving from 800 nm to 1030 nm. It is this scaling which makes our
extremely compact source possible.



 

Fig. 3. (a) Phase mismatch between the soliton the dispersive wave for three
combinations of gas pressure and driving wavelength. The gas pressure is the
same for the blue and orange dashed line. For the solid orange line, the gas
pressure is adjusted to match the phase-matching point on the blue line. (b)
Calculated phase-matching pressure (blue line, left-hand axis) and total GVD
(orange line, right-hand axis) for RDW emission at 230 nm in 150μm core diameter
HCF driven with 13 fs pulses at different central wavelengths. (c) Resulting
change in the calculated fission length (blue line) and approximate scaling with
λ−30 (orange dashed line) for a driving energy of 100μJ. The wavelengths and
fission lengths for Ti:Sapphire and Yb-based laser systems are marked in gray
and black, respectively.

Download Full Size | PDF

Many ultrafast spectroscopy experiments benefit from pumping and probing with
pulses at different wavelengths. By exploiting the energy scaling laws for
soliton dynamics and general nonlinear optics in gases [16,25], we can reduce
the energy required in the second HCF stage and therefore provide enough energy
to pump two independent UV generation stages, enabling two-color experiments.
Scaling the transverse dimension (here, the core diameter of the HCF) by a
factor η scales the overall energy and longitudinal dimension (here, HCF length)
by η2, and the gas density by 1/η2 [25]. Figure 4(a) shows that moving from a
core diameter of 150μm to 100μm reduces the overall energy scale of the process
by a factor of (150/100)2=2.25. Even considering additional losses, splitting
the beam evenly into two arms will thus enable DUV generation in each arm. To
demonstrate this potential, we replace the second stage with 40 cm of 100μm core
diameter HCF. Figure 4(b) shows a series of spectra generated in this smaller
HCF with helium pressures between 13.5 bar and 19 bar. The pulse energy required
for RDW emission, as measured just before the coupling lens, is 61μJ at the
longest RDW wavelength and 93μJ at the shortest. The scaling laws predict that
less than half of the total compressor output (140μJ) should be required to
cover the same tuning range as the larger HCF. There are two reasons why we do
not observe this in the experiment. Firstly, the coupling efficiency to this
smaller HCF is approximately 15 % lower due to increased aberrations in the
focusing [for the same reason, the spectra in Fig. 4(b) are collected at 10 kHz
to avoid damaging the HCF]. Secondly, the scaling laws do not account for the
increased propagation losses for smaller cores [20].

 

Fig. 4. (a) Calculated energy required for RDW emission for different HCF core
sizes, assuming the full compressor output of 140μJ is required for a core
diameter of 150μm. (b) RDW spectra generated in a second-stage HCF with 100μm
core diameter for helium pressures between 13.5 bar and 19 bar.

Download Full Size | PDF

In Fig. 5, we show numerical simulations of an optimized two-color DUV
generation system. Our simulations are based on solving the multi-mode
unidirectional pulse propagation equation and take into account the HCF
dispersion and loss, the Kerr effect, and photoionization and plasma dynamics
[16,26]. We consider 13 fs pump pulses and 100μm core diameter HCFs filled with
decreasing pressure gradients, which enables the direct delivery of compressed
DUV pulses to a vacuum chamber [5,17,24]. In Fig. 5(a) we show the power
spectrum generated when the HCF is 14 cm long, its entrance is filled with
25 bar of helium, and the pump energy is 55μJ. This results in the generation of
a broadband resonant dispersive wave at 200 nm. While the gas pressure in this
case is high, suitable differential pumping schemes would allow for high vacuum
to be maintained in the rest of the system. Figure 5(b) shows the power spectrum
for 20 cm HCF length, 1.8 bar of argon fill pressure, and 28.5μJ pump energy.
Here the resonant dispersive wave is centered at 300 nm. The longer RDW
wavelength allows for the use of argon and lower gas pressure in this case:
because the pressure is higher for a given gas species, the gas nonlinearity is
stronger, and hence the required pulse energy is lower; this is the same effect
which reduces the power generated at longer wavelengths in our experiments. The
lower intensity (5×1013 W cm−2 as compared with 1014 W cm−2 for the RDW at
200 nm) reduces photoionization effects considerably and hence allows for the
use of a gas with lower ionization potential. The RDW pulses are extracted by
bandpass filtering, with the filtered spectrum shown as orange dashed lines in
Figs. 5(a) and 5(b). Figures 5(c) and 5(d) show the filtered pulses. In both
cases, extremely short pulses are generated, with a FWHM duration of 3 fs at
200 nm and 2.6 fs at 300 nm. An optimized system would hence allow for two-color
time-resolved DUV spectroscopy with few-femtosecond time resolution at high
repetition rate.

 

Fig. 5. Simulations of two-color ultrafast DUV pulse generation. (a) Power
spectrum generated in a 14 cm long, 100μm core diameter HCF filled with a
pressure gradient from 25 bar of helium to vacuum and pumped with 13 fs pulses
with 55μJ of energy. The orange dashed line shows the filtered spectrum of the
DUV pulse. (b) Same as (a) but for 20 cm HCF length, 1.8 bar of argon gas and
28.5μJ energy. (c),(d) DUV pulse profiles contained in the filtered spectra
shown in (a) and (b), respectively.

Download Full Size | PDF

In summary, we have demonstrated the generation of high-energy ultrafast DUV
laser pulses at high repetition rate in a small footprint. Energy down-scaling
of the DUV generation stage brings two-color few-femtosecond pulse generation
within reach. Our results mark the first time the numerous advantages of
HCF-based DUV sources have been harnessed using an industrialized
ytterbium-based laser system instead of a titanium-doped sapphire laser. This
enables operation at high repetition rate and average power with excellent total
conversion efficiency, while the small footprint of the laser itself in
combination with the intrinsic wavelength scaling of soliton dynamics keeps the
overall device compact. Tuneable ultrafast DUV pulses hold great promise for
both science and technology. The compact, bright, and efficient laser source we
have demonstrated here will broaden access to new applications in these fields
and beyond.


FUNDING

H2020 European Research Council (101001534, 679649, 899900); Engineering and
Physical Sciences Research Council (EP/T020903/1); Royal Academy of Engineering
(RF2122-21-133).


DISCLOSURES

The authors declare no conflicts of interest.


DATA AVAILABILITY

The data that support the findings of this study are available from the
corresponding author upon reasonable request.


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Biancalana, and P. S. J. Russell, Phys. Rev. Lett. 106, 203901 (2011).
[CrossRef]  

14. K. F. Mak, J. C. Travers, P. Hölzer, N. Y. Joly, and P. S. J. Russell, Opt.
Express 21, 10942 (2013). [CrossRef]  

15. F. Köttig, F. Tani, C. M. Biersach, J. C. Travers, and P. S. Russell, Optica
4, 1272 (2017). [CrossRef]  

16. J. C. Travers, T. F. Grigorova, C. Brahms, and F. Belli, Nat. Photonics 13,
547 (2019). [CrossRef]  

17. C. Brahms, D. R. Austin, F. Tani, A. S. Johnson, D. Garratt, J. C. Travers,
J. W. G. Tisch, P. S. Russell, and J. P. Marangos, Opt. Lett. 44, 731 (2019).
[CrossRef]  

18. J. R. Koehler, F. Köttig, B. M. Trabold, F. Tani, and P. S. Russell, Phys.
Rev. Appl. 10, 064020 (2018). [CrossRef]  

19. C. Brahms, F. Belli, and J. C. Travers, Phys. Rev. Res. 2, 043037 (2020).
[CrossRef]  

20. C. Brahms, T. Grigorova, F. Belli, and J. C. Travers, Opt. Lett. 44, 2990
(2019). [CrossRef]  

21. T. Saule, S. Heinrich, J. Schötz, N. Lilienfein, M. Högner, O. deVries, M.
Plötner, J. Weitenberg, D. Esser, J. Schulte, P. Russbueldt, J. Limpert, M. F.
Kling, U. Kleineberg, and I. Pupeza, Nat. Commun. 10, 458 (2019). [CrossRef]  

22. T. Nagy, M. Forster, and P. Simon, Appl. Opt. 47, 3264 (2008). [CrossRef]  

23. D. R. Austin, C. M. de Sterke, B. J. Eggleton, and T. G. Brown, Opt. Express
14, 11997 (2006). [CrossRef]  

24. C. Brahms, F. Belli, and J. C. Travers, Opt. Lett. 45, 4456 (2020).
[CrossRef]  

25. C. M. Heyl, H. Coudert-Alteirac, M. Miranda, M. Louisy, K. Kovacs, V. Tosa,
E. Balogh, K. Varjú, A. L’Huillier, A. Couairon, and C. L. Arnold, Optica 3, 75
(2016). [CrossRef]  

26. C. Brahms and J. C. Travers, “Luna.jl: A flexible nonlinear optical pulse
propagator,” Zenodo (2021) https://doi.org/10.5281/zenodo.5797786

Previous Article Next Article


REFERENCES

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 * 
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 * 
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--------------------------------------------------------------------------------

 1.  N. Kotsina, F. Belli, S.-F. Gao, Y.-Y. Wang, P. Wang, J. C. Travers, and D.
     Townsend, J. Phys. Chem. Lett. 10, 715 (2019).
     [Crossref]
 2.  D. C. Teles-Ferreira, C. Manzoni, L. Martínez-Fernández, G. Cerullo, A. M.
     de Paula, and R. Borrego-Varillas, Molecules 27, 1200 (2022).
     [Crossref]
 3.  M. Maiuri, M. Garavelli, and G. Cerullo, J. Am. Chem. Soc. 142, 3 (2020).
     [Crossref]
 4.  M. Chergui, J. Chem. Phys. 150, 070901 (2019).
     [Crossref]
 5.  N. Kotsina, C. Brahms, S. L. Jackson, J. C. Travers, and D. Townsend, Chem.
     Sci. 13, 9586 (2022).
     [Crossref]
 6.  T. Nagy and P. Simon, Opt. Lett. 34, 2300 (2009).
     [Crossref]
 7.  A. Sharp, O. Kitzler, A. Fuerbach, D. J. Spence, and D. W. Coutts, Appl.
     Opt. 60, 8316 (2021).
     [Crossref]
 8.  P. Baum, S. Lochbrunner, and E. Riedle, Opt. Lett. 29, 1686 (2004).
     [Crossref]
 9.  M. Beutler, M. Ghotbi, F. Noack, D. Brida, C. Manzoni, and G. Cerullo, Opt.
     Lett. 34, 710 (2009).
     [Crossref]
 10. U. Graf, M. Fieß, M. Schultze, R. Kienberger, F. Krausz, and E.
     Goulielmakis, Opt. Express 16, 18956 (2008).
     [Crossref]
 11. F. Reiter, U. Graf, M. Schultze, W. Schweinberger, H. Schröder, N.
     Karpowicz, A. M. Azzeer, R. Kienberger, F. Krausz, and E. Goulielmakis,
     Opt. Lett. 35, 2248 (2010).
     [Crossref]
 12. M. Galli, V. Wanie, D. P. Lopes, E. P. Månsson, A. Trabattoni, L. Colaizzi,
     K. Saraswathula, A. Cartella, F. Frassetto, L. Poletto, F. Légaré, S.
     Stagira, M. Nisoli, R. M. Vázquez, R. Osellame, and F. Calegari, Opt. Lett.
     44, 1308 (2019).
     [Crossref]
 13. N. Y. Joly, J. Nold, W. Chang, P. Hölzer, A. Nazarkin, G. K. L. Wong, F.
     Biancalana, and P. S. J. Russell, Phys. Rev. Lett. 106, 203901 (2011).
     [Crossref]
 14. K. F. Mak, J. C. Travers, P. Hölzer, N. Y. Joly, and P. S. J. Russell, Opt.
     Express 21, 10942 (2013).
     [Crossref]
 15. F. Köttig, F. Tani, C. M. Biersach, J. C. Travers, and P. S. Russell,
     Optica 4, 1272 (2017).
     [Crossref]
 16. J. C. Travers, T. F. Grigorova, C. Brahms, and F. Belli, Nat. Photonics 13,
     547 (2019).
     [Crossref]
 17. C. Brahms, D. R. Austin, F. Tani, A. S. Johnson, D. Garratt, J. C. Travers,
     J. W. G. Tisch, P. S. Russell, and J. P. Marangos, Opt. Lett. 44, 731
     (2019).
     [Crossref]
 18. J. R. Koehler, F. Köttig, B. M. Trabold, F. Tani, and P. S. Russell, Phys.
     Rev. Appl. 10, 064020 (2018).
     [Crossref]
 19. C. Brahms, F. Belli, and J. C. Travers, Phys. Rev. Res. 2, 043037 (2020).
     [Crossref]
 20. C. Brahms, T. Grigorova, F. Belli, and J. C. Travers, Opt. Lett. 44, 2990
     (2019).
     [Crossref]
 21. T. Saule, S. Heinrich, J. Schötz, N. Lilienfein, M. Högner, O. deVries, M.
     Plötner, J. Weitenberg, D. Esser, J. Schulte, P. Russbueldt, J. Limpert, M.
     F. Kling, U. Kleineberg, and I. Pupeza, Nat. Commun. 10, 458 (2019).
     [Crossref]
 22. T. Nagy, M. Forster, and P. Simon, Appl. Opt. 47, 3264 (2008).
     [Crossref]
 23. D. R. Austin, C. M. de Sterke, B. J. Eggleton, and T. G. Brown, Opt.
     Express 14, 11997 (2006).
     [Crossref]
 24. C. Brahms, F. Belli, and J. C. Travers, Opt. Lett. 45, 4456 (2020).
     [Crossref]
 25. C. M. Heyl, H. Coudert-Alteirac, M. Miranda, M. Louisy, K. Kovacs, V. Tosa,
     E. Balogh, K. Varjú, A. L’Huillier, A. Couairon, and C. L. Arnold, Optica
     3, 75 (2016).
     [Crossref]
 26. C. Brahms and J. C. Travers, “Luna.jl: A flexible nonlinear optical pulse
     propagator,” Zenodo (2021) https://doi.org/10.5281/zenodo.5797786
     




2022 (2)

D. C. Teles-Ferreira, C. Manzoni, L. Martínez-Fernández, G. Cerullo, A. M. de
Paula, and R. Borrego-Varillas, Molecules 27, 1200 (2022).
[Crossref]

N. Kotsina, C. Brahms, S. L. Jackson, J. C. Travers, and D. Townsend, Chem. Sci.
13, 9586 (2022).
[Crossref]

2021 (1)

A. Sharp, O. Kitzler, A. Fuerbach, D. J. Spence, and D. W. Coutts, Appl. Opt.
60, 8316 (2021).
[Crossref]

2020 (3)

M. Maiuri, M. Garavelli, and G. Cerullo, J. Am. Chem. Soc. 142, 3 (2020).
[Crossref]

C. Brahms, F. Belli, and J. C. Travers, Phys. Rev. Res. 2, 043037 (2020).
[Crossref]

C. Brahms, F. Belli, and J. C. Travers, Opt. Lett. 45, 4456 (2020).
[Crossref]

2019 (7)

C. Brahms, T. Grigorova, F. Belli, and J. C. Travers, Opt. Lett. 44, 2990
(2019).
[Crossref]

T. Saule, S. Heinrich, J. Schötz, N. Lilienfein, M. Högner, O. deVries, M.
Plötner, J. Weitenberg, D. Esser, J. Schulte, P. Russbueldt, J. Limpert, M. F.
Kling, U. Kleineberg, and I. Pupeza, Nat. Commun. 10, 458 (2019).
[Crossref]

M. Chergui, J. Chem. Phys. 150, 070901 (2019).
[Crossref]

N. Kotsina, F. Belli, S.-F. Gao, Y.-Y. Wang, P. Wang, J. C. Travers, and D.
Townsend, J. Phys. Chem. Lett. 10, 715 (2019).
[Crossref]

M. Galli, V. Wanie, D. P. Lopes, E. P. Månsson, A. Trabattoni, L. Colaizzi, K.
Saraswathula, A. Cartella, F. Frassetto, L. Poletto, F. Légaré, S. Stagira, M.
Nisoli, R. M. Vázquez, R. Osellame, and F. Calegari, Opt. Lett. 44, 1308 (2019).
[Crossref]

J. C. Travers, T. F. Grigorova, C. Brahms, and F. Belli, Nat. Photonics 13, 547
(2019).
[Crossref]

C. Brahms, D. R. Austin, F. Tani, A. S. Johnson, D. Garratt, J. C. Travers, J.
W. G. Tisch, P. S. Russell, and J. P. Marangos, Opt. Lett. 44, 731 (2019).
[Crossref]

2018 (1)

J. R. Koehler, F. Köttig, B. M. Trabold, F. Tani, and P. S. Russell, Phys. Rev.
Appl. 10, 064020 (2018).
[Crossref]

2017 (1)

F. Köttig, F. Tani, C. M. Biersach, J. C. Travers, and P. S. Russell, Optica 4,
1272 (2017).
[Crossref]

2016 (1)

C. M. Heyl, H. Coudert-Alteirac, M. Miranda, M. Louisy, K. Kovacs, V. Tosa, E.
Balogh, K. Varjú, A. L’Huillier, A. Couairon, and C. L. Arnold, Optica 3, 75
(2016).
[Crossref]

2013 (1)

K. F. Mak, J. C. Travers, P. Hölzer, N. Y. Joly, and P. S. J. Russell, Opt.
Express 21, 10942 (2013).
[Crossref]

2011 (1)

N. Y. Joly, J. Nold, W. Chang, P. Hölzer, A. Nazarkin, G. K. L. Wong, F.
Biancalana, and P. S. J. Russell, Phys. Rev. Lett. 106, 203901 (2011).
[Crossref]

2010 (1)

F. Reiter, U. Graf, M. Schultze, W. Schweinberger, H. Schröder, N. Karpowicz, A.
M. Azzeer, R. Kienberger, F. Krausz, and E. Goulielmakis, Opt. Lett. 35, 2248
(2010).
[Crossref]

2009 (2)

T. Nagy and P. Simon, Opt. Lett. 34, 2300 (2009).
[Crossref]

M. Beutler, M. Ghotbi, F. Noack, D. Brida, C. Manzoni, and G. Cerullo, Opt.
Lett. 34, 710 (2009).
[Crossref]

2008 (2)

U. Graf, M. Fieß, M. Schultze, R. Kienberger, F. Krausz, and E. Goulielmakis,
Opt. Express 16, 18956 (2008).
[Crossref]

T. Nagy, M. Forster, and P. Simon, Appl. Opt. 47, 3264 (2008).
[Crossref]

2006 (1)

D. R. Austin, C. M. de Sterke, B. J. Eggleton, and T. G. Brown, Opt. Express 14,
11997 (2006).
[Crossref]

2004 (1)

P. Baum, S. Lochbrunner, and E. Riedle, Opt. Lett. 29, 1686 (2004).
[Crossref]

ARNOLD, C. L.

C. M. Heyl, H. Coudert-Alteirac, M. Miranda, M. Louisy, K. Kovacs, V. Tosa, E.
Balogh, K. Varjú, A. L’Huillier, A. Couairon, and C. L. Arnold, Optica 3, 75
(2016).
[Crossref]

AUSTIN, D. R.

C. Brahms, D. R. Austin, F. Tani, A. S. Johnson, D. Garratt, J. C. Travers, J.
W. G. Tisch, P. S. Russell, and J. P. Marangos, Opt. Lett. 44, 731 (2019).
[Crossref]

D. R. Austin, C. M. de Sterke, B. J. Eggleton, and T. G. Brown, Opt. Express 14,
11997 (2006).
[Crossref]

AZZEER, A. M.

F. Reiter, U. Graf, M. Schultze, W. Schweinberger, H. Schröder, N. Karpowicz, A.
M. Azzeer, R. Kienberger, F. Krausz, and E. Goulielmakis, Opt. Lett. 35, 2248
(2010).
[Crossref]

BALOGH, E.

C. M. Heyl, H. Coudert-Alteirac, M. Miranda, M. Louisy, K. Kovacs, V. Tosa, E.
Balogh, K. Varjú, A. L’Huillier, A. Couairon, and C. L. Arnold, Optica 3, 75
(2016).
[Crossref]

BAUM, P.

P. Baum, S. Lochbrunner, and E. Riedle, Opt. Lett. 29, 1686 (2004).
[Crossref]

BELLI, F.

C. Brahms, F. Belli, and J. C. Travers, Opt. Lett. 45, 4456 (2020).
[Crossref]

C. Brahms, F. Belli, and J. C. Travers, Phys. Rev. Res. 2, 043037 (2020).
[Crossref]

J. C. Travers, T. F. Grigorova, C. Brahms, and F. Belli, Nat. Photonics 13, 547
(2019).
[Crossref]

C. Brahms, T. Grigorova, F. Belli, and J. C. Travers, Opt. Lett. 44, 2990
(2019).
[Crossref]

N. Kotsina, F. Belli, S.-F. Gao, Y.-Y. Wang, P. Wang, J. C. Travers, and D.
Townsend, J. Phys. Chem. Lett. 10, 715 (2019).
[Crossref]

BEUTLER, M.

M. Beutler, M. Ghotbi, F. Noack, D. Brida, C. Manzoni, and G. Cerullo, Opt.
Lett. 34, 710 (2009).
[Crossref]

BIANCALANA, F.

N. Y. Joly, J. Nold, W. Chang, P. Hölzer, A. Nazarkin, G. K. L. Wong, F.
Biancalana, and P. S. J. Russell, Phys. Rev. Lett. 106, 203901 (2011).
[Crossref]

BIERSACH, C. M.

F. Köttig, F. Tani, C. M. Biersach, J. C. Travers, and P. S. Russell, Optica 4,
1272 (2017).
[Crossref]

BORREGO-VARILLAS, R.

D. C. Teles-Ferreira, C. Manzoni, L. Martínez-Fernández, G. Cerullo, A. M. de
Paula, and R. Borrego-Varillas, Molecules 27, 1200 (2022).
[Crossref]

BRAHMS, C.

N. Kotsina, C. Brahms, S. L. Jackson, J. C. Travers, and D. Townsend, Chem. Sci.
13, 9586 (2022).
[Crossref]

C. Brahms, F. Belli, and J. C. Travers, Phys. Rev. Res. 2, 043037 (2020).
[Crossref]

C. Brahms, F. Belli, and J. C. Travers, Opt. Lett. 45, 4456 (2020).
[Crossref]

C. Brahms, T. Grigorova, F. Belli, and J. C. Travers, Opt. Lett. 44, 2990
(2019).
[Crossref]

J. C. Travers, T. F. Grigorova, C. Brahms, and F. Belli, Nat. Photonics 13, 547
(2019).
[Crossref]

C. Brahms, D. R. Austin, F. Tani, A. S. Johnson, D. Garratt, J. C. Travers, J.
W. G. Tisch, P. S. Russell, and J. P. Marangos, Opt. Lett. 44, 731 (2019).
[Crossref]

C. Brahms and J. C. Travers, “Luna.jl: A flexible nonlinear optical pulse
propagator,” Zenodo (2021) https://doi.org/10.5281/zenodo.5797786


BRIDA, D.

M. Beutler, M. Ghotbi, F. Noack, D. Brida, C. Manzoni, and G. Cerullo, Opt.
Lett. 34, 710 (2009).
[Crossref]

BROWN, T. G.

D. R. Austin, C. M. de Sterke, B. J. Eggleton, and T. G. Brown, Opt. Express 14,
11997 (2006).
[Crossref]

CALEGARI, F.

M. Galli, V. Wanie, D. P. Lopes, E. P. Månsson, A. Trabattoni, L. Colaizzi, K.
Saraswathula, A. Cartella, F. Frassetto, L. Poletto, F. Légaré, S. Stagira, M.
Nisoli, R. M. Vázquez, R. Osellame, and F. Calegari, Opt. Lett. 44, 1308 (2019).
[Crossref]

CARTELLA, A.

M. Galli, V. Wanie, D. P. Lopes, E. P. Månsson, A. Trabattoni, L. Colaizzi, K.
Saraswathula, A. Cartella, F. Frassetto, L. Poletto, F. Légaré, S. Stagira, M.
Nisoli, R. M. Vázquez, R. Osellame, and F. Calegari, Opt. Lett. 44, 1308 (2019).
[Crossref]

CERULLO, G.

D. C. Teles-Ferreira, C. Manzoni, L. Martínez-Fernández, G. Cerullo, A. M. de
Paula, and R. Borrego-Varillas, Molecules 27, 1200 (2022).
[Crossref]

M. Maiuri, M. Garavelli, and G. Cerullo, J. Am. Chem. Soc. 142, 3 (2020).
[Crossref]

M. Beutler, M. Ghotbi, F. Noack, D. Brida, C. Manzoni, and G. Cerullo, Opt.
Lett. 34, 710 (2009).
[Crossref]

CHANG, W.

N. Y. Joly, J. Nold, W. Chang, P. Hölzer, A. Nazarkin, G. K. L. Wong, F.
Biancalana, and P. S. J. Russell, Phys. Rev. Lett. 106, 203901 (2011).
[Crossref]

CHERGUI, M.

M. Chergui, J. Chem. Phys. 150, 070901 (2019).
[Crossref]

COLAIZZI, L.

M. Galli, V. Wanie, D. P. Lopes, E. P. Månsson, A. Trabattoni, L. Colaizzi, K.
Saraswathula, A. Cartella, F. Frassetto, L. Poletto, F. Légaré, S. Stagira, M.
Nisoli, R. M. Vázquez, R. Osellame, and F. Calegari, Opt. Lett. 44, 1308 (2019).
[Crossref]

COUAIRON, A.

C. M. Heyl, H. Coudert-Alteirac, M. Miranda, M. Louisy, K. Kovacs, V. Tosa, E.
Balogh, K. Varjú, A. L’Huillier, A. Couairon, and C. L. Arnold, Optica 3, 75
(2016).
[Crossref]

COUDERT-ALTEIRAC, H.

C. M. Heyl, H. Coudert-Alteirac, M. Miranda, M. Louisy, K. Kovacs, V. Tosa, E.
Balogh, K. Varjú, A. L’Huillier, A. Couairon, and C. L. Arnold, Optica 3, 75
(2016).
[Crossref]

COUTTS, D. W.

A. Sharp, O. Kitzler, A. Fuerbach, D. J. Spence, and D. W. Coutts, Appl. Opt.
60, 8316 (2021).
[Crossref]

DE PAULA, A. M.

D. C. Teles-Ferreira, C. Manzoni, L. Martínez-Fernández, G. Cerullo, A. M. de
Paula, and R. Borrego-Varillas, Molecules 27, 1200 (2022).
[Crossref]

DE STERKE, C. M.

D. R. Austin, C. M. de Sterke, B. J. Eggleton, and T. G. Brown, Opt. Express 14,
11997 (2006).
[Crossref]

DEVRIES, O.

T. Saule, S. Heinrich, J. Schötz, N. Lilienfein, M. Högner, O. deVries, M.
Plötner, J. Weitenberg, D. Esser, J. Schulte, P. Russbueldt, J. Limpert, M. F.
Kling, U. Kleineberg, and I. Pupeza, Nat. Commun. 10, 458 (2019).
[Crossref]

EGGLETON, B. J.

D. R. Austin, C. M. de Sterke, B. J. Eggleton, and T. G. Brown, Opt. Express 14,
11997 (2006).
[Crossref]

ESSER, D.

T. Saule, S. Heinrich, J. Schötz, N. Lilienfein, M. Högner, O. deVries, M.
Plötner, J. Weitenberg, D. Esser, J. Schulte, P. Russbueldt, J. Limpert, M. F.
Kling, U. Kleineberg, and I. Pupeza, Nat. Commun. 10, 458 (2019).
[Crossref]

FIESS, M.

U. Graf, M. Fieß, M. Schultze, R. Kienberger, F. Krausz, and E. Goulielmakis,
Opt. Express 16, 18956 (2008).
[Crossref]

FORSTER, M.

T. Nagy, M. Forster, and P. Simon, Appl. Opt. 47, 3264 (2008).
[Crossref]

FRASSETTO, F.

M. Galli, V. Wanie, D. P. Lopes, E. P. Månsson, A. Trabattoni, L. Colaizzi, K.
Saraswathula, A. Cartella, F. Frassetto, L. Poletto, F. Légaré, S. Stagira, M.
Nisoli, R. M. Vázquez, R. Osellame, and F. Calegari, Opt. Lett. 44, 1308 (2019).
[Crossref]

FUERBACH, A.

A. Sharp, O. Kitzler, A. Fuerbach, D. J. Spence, and D. W. Coutts, Appl. Opt.
60, 8316 (2021).
[Crossref]

GALLI, M.

M. Galli, V. Wanie, D. P. Lopes, E. P. Månsson, A. Trabattoni, L. Colaizzi, K.
Saraswathula, A. Cartella, F. Frassetto, L. Poletto, F. Légaré, S. Stagira, M.
Nisoli, R. M. Vázquez, R. Osellame, and F. Calegari, Opt. Lett. 44, 1308 (2019).
[Crossref]

GAO, S.-F.

N. Kotsina, F. Belli, S.-F. Gao, Y.-Y. Wang, P. Wang, J. C. Travers, and D.
Townsend, J. Phys. Chem. Lett. 10, 715 (2019).
[Crossref]

GARAVELLI, M.

M. Maiuri, M. Garavelli, and G. Cerullo, J. Am. Chem. Soc. 142, 3 (2020).
[Crossref]

GARRATT, D.

C. Brahms, D. R. Austin, F. Tani, A. S. Johnson, D. Garratt, J. C. Travers, J.
W. G. Tisch, P. S. Russell, and J. P. Marangos, Opt. Lett. 44, 731 (2019).
[Crossref]

GHOTBI, M.

M. Beutler, M. Ghotbi, F. Noack, D. Brida, C. Manzoni, and G. Cerullo, Opt.
Lett. 34, 710 (2009).
[Crossref]

GOULIELMAKIS, E.

F. Reiter, U. Graf, M. Schultze, W. Schweinberger, H. Schröder, N. Karpowicz, A.
M. Azzeer, R. Kienberger, F. Krausz, and E. Goulielmakis, Opt. Lett. 35, 2248
(2010).
[Crossref]

U. Graf, M. Fieß, M. Schultze, R. Kienberger, F. Krausz, and E. Goulielmakis,
Opt. Express 16, 18956 (2008).
[Crossref]

GRAF, U.

F. Reiter, U. Graf, M. Schultze, W. Schweinberger, H. Schröder, N. Karpowicz, A.
M. Azzeer, R. Kienberger, F. Krausz, and E. Goulielmakis, Opt. Lett. 35, 2248
(2010).
[Crossref]

U. Graf, M. Fieß, M. Schultze, R. Kienberger, F. Krausz, and E. Goulielmakis,
Opt. Express 16, 18956 (2008).
[Crossref]

GRIGOROVA, T.

C. Brahms, T. Grigorova, F. Belli, and J. C. Travers, Opt. Lett. 44, 2990
(2019).
[Crossref]

GRIGOROVA, T. F.

J. C. Travers, T. F. Grigorova, C. Brahms, and F. Belli, Nat. Photonics 13, 547
(2019).
[Crossref]

HEINRICH, S.

T. Saule, S. Heinrich, J. Schötz, N. Lilienfein, M. Högner, O. deVries, M.
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[Crossref]

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C. M. Heyl, H. Coudert-Alteirac, M. Miranda, M. Louisy, K. Kovacs, V. Tosa, E.
Balogh, K. Varjú, A. L’Huillier, A. Couairon, and C. L. Arnold, Optica 3, 75
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T. Saule, S. Heinrich, J. Schötz, N. Lilienfein, M. Högner, O. deVries, M.
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[Crossref]

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K. F. Mak, J. C. Travers, P. Hölzer, N. Y. Joly, and P. S. J. Russell, Opt.
Express 21, 10942 (2013).
[Crossref]

N. Y. Joly, J. Nold, W. Chang, P. Hölzer, A. Nazarkin, G. K. L. Wong, F.
Biancalana, and P. S. J. Russell, Phys. Rev. Lett. 106, 203901 (2011).
[Crossref]

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N. Kotsina, C. Brahms, S. L. Jackson, J. C. Travers, and D. Townsend, Chem. Sci.
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[Crossref]

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C. Brahms, D. R. Austin, F. Tani, A. S. Johnson, D. Garratt, J. C. Travers, J.
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K. F. Mak, J. C. Travers, P. Hölzer, N. Y. Joly, and P. S. J. Russell, Opt.
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[Crossref]

N. Y. Joly, J. Nold, W. Chang, P. Hölzer, A. Nazarkin, G. K. L. Wong, F.
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F. Reiter, U. Graf, M. Schultze, W. Schweinberger, H. Schröder, N. Karpowicz, A.
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F. Reiter, U. Graf, M. Schultze, W. Schweinberger, H. Schröder, N. Karpowicz, A.
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U. Graf, M. Fieß, M. Schultze, R. Kienberger, F. Krausz, and E. Goulielmakis,
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A. Sharp, O. Kitzler, A. Fuerbach, D. J. Spence, and D. W. Coutts, Appl. Opt.
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T. Saule, S. Heinrich, J. Schötz, N. Lilienfein, M. Högner, O. deVries, M.
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T. Saule, S. Heinrich, J. Schötz, N. Lilienfein, M. Högner, O. deVries, M.
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J. R. Koehler, F. Köttig, B. M. Trabold, F. Tani, and P. S. Russell, Phys. Rev.
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[Crossref]

KOTSINA, N.

N. Kotsina, C. Brahms, S. L. Jackson, J. C. Travers, and D. Townsend, Chem. Sci.
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[Crossref]

N. Kotsina, F. Belli, S.-F. Gao, Y.-Y. Wang, P. Wang, J. C. Travers, and D.
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[Crossref]

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J. R. Koehler, F. Köttig, B. M. Trabold, F. Tani, and P. S. Russell, Phys. Rev.
Appl. 10, 064020 (2018).
[Crossref]

F. Köttig, F. Tani, C. M. Biersach, J. C. Travers, and P. S. Russell, Optica 4,
1272 (2017).
[Crossref]

KOVACS, K.

C. M. Heyl, H. Coudert-Alteirac, M. Miranda, M. Louisy, K. Kovacs, V. Tosa, E.
Balogh, K. Varjú, A. L’Huillier, A. Couairon, and C. L. Arnold, Optica 3, 75
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KRAUSZ, F.

F. Reiter, U. Graf, M. Schultze, W. Schweinberger, H. Schröder, N. Karpowicz, A.
M. Azzeer, R. Kienberger, F. Krausz, and E. Goulielmakis, Opt. Lett. 35, 2248
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U. Graf, M. Fieß, M. Schultze, R. Kienberger, F. Krausz, and E. Goulielmakis,
Opt. Express 16, 18956 (2008).
[Crossref]

L’HUILLIER, A.

C. M. Heyl, H. Coudert-Alteirac, M. Miranda, M. Louisy, K. Kovacs, V. Tosa, E.
Balogh, K. Varjú, A. L’Huillier, A. Couairon, and C. L. Arnold, Optica 3, 75
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LÉGARÉ, F.

M. Galli, V. Wanie, D. P. Lopes, E. P. Månsson, A. Trabattoni, L. Colaizzi, K.
Saraswathula, A. Cartella, F. Frassetto, L. Poletto, F. Légaré, S. Stagira, M.
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LILIENFEIN, N.

T. Saule, S. Heinrich, J. Schötz, N. Lilienfein, M. Högner, O. deVries, M.
Plötner, J. Weitenberg, D. Esser, J. Schulte, P. Russbueldt, J. Limpert, M. F.
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LIMPERT, J.

T. Saule, S. Heinrich, J. Schötz, N. Lilienfein, M. Högner, O. deVries, M.
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P. Baum, S. Lochbrunner, and E. Riedle, Opt. Lett. 29, 1686 (2004).
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M. Galli, V. Wanie, D. P. Lopes, E. P. Månsson, A. Trabattoni, L. Colaizzi, K.
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C. M. Heyl, H. Coudert-Alteirac, M. Miranda, M. Louisy, K. Kovacs, V. Tosa, E.
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M. Maiuri, M. Garavelli, and G. Cerullo, J. Am. Chem. Soc. 142, 3 (2020).
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K. F. Mak, J. C. Travers, P. Hölzer, N. Y. Joly, and P. S. J. Russell, Opt.
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M. Galli, V. Wanie, D. P. Lopes, E. P. Månsson, A. Trabattoni, L. Colaizzi, K.
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D. C. Teles-Ferreira, C. Manzoni, L. Martínez-Fernández, G. Cerullo, A. M. de
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C. Brahms, D. R. Austin, F. Tani, A. S. Johnson, D. Garratt, J. C. Travers, J.
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D. C. Teles-Ferreira, C. Manzoni, L. Martínez-Fernández, G. Cerullo, A. M. de
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C. M. Heyl, H. Coudert-Alteirac, M. Miranda, M. Louisy, K. Kovacs, V. Tosa, E.
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T. Nagy and P. Simon, Opt. Lett. 34, 2300 (2009).
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T. Nagy, M. Forster, and P. Simon, Appl. Opt. 47, 3264 (2008).
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N. Y. Joly, J. Nold, W. Chang, P. Hölzer, A. Nazarkin, G. K. L. Wong, F.
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M. Galli, V. Wanie, D. P. Lopes, E. P. Månsson, A. Trabattoni, L. Colaizzi, K.
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M. Beutler, M. Ghotbi, F. Noack, D. Brida, C. Manzoni, and G. Cerullo, Opt.
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N. Y. Joly, J. Nold, W. Chang, P. Hölzer, A. Nazarkin, G. K. L. Wong, F.
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M. Galli, V. Wanie, D. P. Lopes, E. P. Månsson, A. Trabattoni, L. Colaizzi, K.
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T. Saule, S. Heinrich, J. Schötz, N. Lilienfein, M. Högner, O. deVries, M.
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M. Galli, V. Wanie, D. P. Lopes, E. P. Månsson, A. Trabattoni, L. Colaizzi, K.
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T. Saule, S. Heinrich, J. Schötz, N. Lilienfein, M. Högner, O. deVries, M.
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F. Reiter, U. Graf, M. Schultze, W. Schweinberger, H. Schröder, N. Karpowicz, A.
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P. Baum, S. Lochbrunner, and E. Riedle, Opt. Lett. 29, 1686 (2004).
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T. Saule, S. Heinrich, J. Schötz, N. Lilienfein, M. Högner, O. deVries, M.
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C. Brahms, D. R. Austin, F. Tani, A. S. Johnson, D. Garratt, J. C. Travers, J.
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J. R. Koehler, F. Köttig, B. M. Trabold, F. Tani, and P. S. Russell, Phys. Rev.
Appl. 10, 064020 (2018).
[Crossref]

F. Köttig, F. Tani, C. M. Biersach, J. C. Travers, and P. S. Russell, Optica 4,
1272 (2017).
[Crossref]

RUSSELL, P. S. J.

K. F. Mak, J. C. Travers, P. Hölzer, N. Y. Joly, and P. S. J. Russell, Opt.
Express 21, 10942 (2013).
[Crossref]

N. Y. Joly, J. Nold, W. Chang, P. Hölzer, A. Nazarkin, G. K. L. Wong, F.
Biancalana, and P. S. J. Russell, Phys. Rev. Lett. 106, 203901 (2011).
[Crossref]

SARASWATHULA, K.

M. Galli, V. Wanie, D. P. Lopes, E. P. Månsson, A. Trabattoni, L. Colaizzi, K.
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T. Saule, S. Heinrich, J. Schötz, N. Lilienfein, M. Högner, O. deVries, M.
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T. Saule, S. Heinrich, J. Schötz, N. Lilienfein, M. Högner, O. deVries, M.
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F. Reiter, U. Graf, M. Schultze, W. Schweinberger, H. Schröder, N. Karpowicz, A.
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T. Saule, S. Heinrich, J. Schötz, N. Lilienfein, M. Högner, O. deVries, M.
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F. Reiter, U. Graf, M. Schultze, W. Schweinberger, H. Schröder, N. Karpowicz, A.
M. Azzeer, R. Kienberger, F. Krausz, and E. Goulielmakis, Opt. Lett. 35, 2248
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U. Graf, M. Fieß, M. Schultze, R. Kienberger, F. Krausz, and E. Goulielmakis,
Opt. Express 16, 18956 (2008).
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SCHWEINBERGER, W.

F. Reiter, U. Graf, M. Schultze, W. Schweinberger, H. Schröder, N. Karpowicz, A.
M. Azzeer, R. Kienberger, F. Krausz, and E. Goulielmakis, Opt. Lett. 35, 2248
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SHARP, A.

A. Sharp, O. Kitzler, A. Fuerbach, D. J. Spence, and D. W. Coutts, Appl. Opt.
60, 8316 (2021).
[Crossref]

SIMON, P.

T. Nagy and P. Simon, Opt. Lett. 34, 2300 (2009).
[Crossref]

T. Nagy, M. Forster, and P. Simon, Appl. Opt. 47, 3264 (2008).
[Crossref]

SPENCE, D. J.

A. Sharp, O. Kitzler, A. Fuerbach, D. J. Spence, and D. W. Coutts, Appl. Opt.
60, 8316 (2021).
[Crossref]

STAGIRA, S.

M. Galli, V. Wanie, D. P. Lopes, E. P. Månsson, A. Trabattoni, L. Colaizzi, K.
Saraswathula, A. Cartella, F. Frassetto, L. Poletto, F. Légaré, S. Stagira, M.
Nisoli, R. M. Vázquez, R. Osellame, and F. Calegari, Opt. Lett. 44, 1308 (2019).
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TANI, F.

C. Brahms, D. R. Austin, F. Tani, A. S. Johnson, D. Garratt, J. C. Travers, J.
W. G. Tisch, P. S. Russell, and J. P. Marangos, Opt. Lett. 44, 731 (2019).
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J. R. Koehler, F. Köttig, B. M. Trabold, F. Tani, and P. S. Russell, Phys. Rev.
Appl. 10, 064020 (2018).
[Crossref]

F. Köttig, F. Tani, C. M. Biersach, J. C. Travers, and P. S. Russell, Optica 4,
1272 (2017).
[Crossref]

TELES-FERREIRA, D. C.

D. C. Teles-Ferreira, C. Manzoni, L. Martínez-Fernández, G. Cerullo, A. M. de
Paula, and R. Borrego-Varillas, Molecules 27, 1200 (2022).
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TISCH, J. W. G.

C. Brahms, D. R. Austin, F. Tani, A. S. Johnson, D. Garratt, J. C. Travers, J.
W. G. Tisch, P. S. Russell, and J. P. Marangos, Opt. Lett. 44, 731 (2019).
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TOSA, V.

C. M. Heyl, H. Coudert-Alteirac, M. Miranda, M. Louisy, K. Kovacs, V. Tosa, E.
Balogh, K. Varjú, A. L’Huillier, A. Couairon, and C. L. Arnold, Optica 3, 75
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TOWNSEND, D.

N. Kotsina, C. Brahms, S. L. Jackson, J. C. Travers, and D. Townsend, Chem. Sci.
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N. Kotsina, F. Belli, S.-F. Gao, Y.-Y. Wang, P. Wang, J. C. Travers, and D.
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M. Galli, V. Wanie, D. P. Lopes, E. P. Månsson, A. Trabattoni, L. Colaizzi, K.
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J. R. Koehler, F. Köttig, B. M. Trabold, F. Tani, and P. S. Russell, Phys. Rev.
Appl. 10, 064020 (2018).
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N. Kotsina, C. Brahms, S. L. Jackson, J. C. Travers, and D. Townsend, Chem. Sci.
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C. Brahms, F. Belli, and J. C. Travers, Phys. Rev. Res. 2, 043037 (2020).
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C. Brahms, F. Belli, and J. C. Travers, Opt. Lett. 45, 4456 (2020).
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C. Brahms, T. Grigorova, F. Belli, and J. C. Travers, Opt. Lett. 44, 2990
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C. Brahms, D. R. Austin, F. Tani, A. S. Johnson, D. Garratt, J. C. Travers, J.
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J. C. Travers, T. F. Grigorova, C. Brahms, and F. Belli, Nat. Photonics 13, 547
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N. Kotsina, F. Belli, S.-F. Gao, Y.-Y. Wang, P. Wang, J. C. Travers, and D.
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F. Köttig, F. Tani, C. M. Biersach, J. C. Travers, and P. S. Russell, Optica 4,
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K. F. Mak, J. C. Travers, P. Hölzer, N. Y. Joly, and P. S. J. Russell, Opt.
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C. Brahms and J. C. Travers, “Luna.jl: A flexible nonlinear optical pulse
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VARJÚ, K.

C. M. Heyl, H. Coudert-Alteirac, M. Miranda, M. Louisy, K. Kovacs, V. Tosa, E.
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[Crossref]

VÁZQUEZ, R. M.

M. Galli, V. Wanie, D. P. Lopes, E. P. Månsson, A. Trabattoni, L. Colaizzi, K.
Saraswathula, A. Cartella, F. Frassetto, L. Poletto, F. Légaré, S. Stagira, M.
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N. Kotsina, F. Belli, S.-F. Gao, Y.-Y. Wang, P. Wang, J. C. Travers, and D.
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N. Kotsina, F. Belli, S.-F. Gao, Y.-Y. Wang, P. Wang, J. C. Travers, and D.
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M. Galli, V. Wanie, D. P. Lopes, E. P. Månsson, A. Trabattoni, L. Colaizzi, K.
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WEITENBERG, J.

T. Saule, S. Heinrich, J. Schötz, N. Lilienfein, M. Högner, O. deVries, M.
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N. Y. Joly, J. Nold, W. Chang, P. Hölzer, A. Nazarkin, G. K. L. Wong, F.
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APPL. OPT. (2)

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OTHER (1)

C. Brahms and J. C. Travers, “Luna.jl: A flexible nonlinear optical pulse
propagator,” Zenodo (2021) https://doi.org/10.5281/zenodo.5797786



DATA AVAILABILITY

The data that support the findings of this study are available from the
corresponding author upon reasonable request.


CITED BY

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FIGURES (5)

 * Fig. 1.
 * Fig. 2.
 * Fig. 3.
 * Fig. 4.
 * Fig. 5.



Fig. 1. Layout of the light source. A commercial laser emits 200μJ, 220 fs
pulses at 1030 nm at a repetition rate of 50 kHz. These are compressed to 13 fs
duration by spectral broadening in a first gas-filled HCF and dispersion
compensation by chirped mirrors (CMs) and a wedge pair. A half-wave plate (λ/2)
and two reflective polarizers (Pol) form a variable attenuator. DUV pulses are
generated in a second HCF filled with helium.

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Fig. 2. (a) Example spectra of DUV pulses generated in the second-stage HCF.
Each curve corresponds to a different gas pressure and pump pulse energy.
Longer-wavelength spectra are generated with higher pressure and less pump
energy. (b) Average power at 50 kHz for different central wavelengths.

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Fig. 3. (a) Phase mismatch between the soliton the dispersive wave for three
combinations of gas pressure and driving wavelength. The gas pressure is the
same for the blue and orange dashed line. For the solid orange line, the gas
pressure is adjusted to match the phase-matching point on the blue line. (b)
Calculated phase-matching pressure (blue line, left-hand axis) and total GVD
(orange line, right-hand axis) for RDW emission at 230 nm in 150μm core diameter
HCF driven with 13 fs pulses at different central wavelengths. (c) Resulting
change in the calculated fission length (blue line) and approximate scaling with
λ−30 (orange dashed line) for a driving energy of 100μJ. The wavelengths and
fission lengths for Ti:Sapphire and Yb-based laser systems are marked in gray
and black, respectively.

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Fig. 4. (a) Calculated energy required for RDW emission for different HCF core
sizes, assuming the full compressor output of 140μJ is required for a core
diameter of 150μm. (b) RDW spectra generated in a second-stage HCF with 100μm
core diameter for helium pressures between 13.5 bar and 19 bar.

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Fig. 5. Simulations of two-color ultrafast DUV pulse generation. (a) Power
spectrum generated in a 14 cm long, 100μm core diameter HCF filled with a
pressure gradient from 25 bar of helium to vacuum and pumped with 13 fs pulses
with 55μJ of energy. The orange dashed line shows the filtered spectrum of the
DUV pulse. (b) Same as (a) but for 20 cm HCF length, 1.8 bar of argon gas and
28.5μJ energy. (c),(d) DUV pulse profiles contained in the filtered spectra
shown in (a) and (b), respectively.

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EQUATIONS (2)

Equations on this page are rendered with MathJax. Learn more.

(1) Lf∝τa2√I0,

(2) Lf∝τa2√I0λ30,



METRICS


OPTICS LETTERS

Miguel Alonso, Editor-in-Chief

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