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Alexander Ling
 * The SpooQy Lab
 * Join Us!
 * 
   Team Members
    * Alexander Ling
    * Team Photos

 * 
   Projects
    * SpooQy-1
    * Satellite Constellations
    * Space-based Quantum Communication - Animations
    * SPEQS-0: Near-Space Demonstration
    * SPEQS-1: Small Photon-Entangling Quantum System
    * SPEQS-2: Entanglement in LEO
    * Entangled photon sources I
    * Entangled photon sources II: PACES
    * Entangled photon sources III: POMO
    * Entangled photon sources IV: PAPA
    * Super resolution imaging
    * Single Photon Counters
    * Talking QKD
    * In the News
    * Outreach

 * Publications
 * Conferences & Talks

Alexander Ling
 * The SpooQy Lab
   
 * Join Us!
   
 * Team Members
   
   
    * Alexander Ling
    * Team Photos

 * Projects
   
   
    * SpooQy-1
    * Satellite Constellations
    * Space-based Quantum Communication - Animations
    * SPEQS-0: Near-Space Demonstration
    * SPEQS-1: Small Photon-Entangling Quantum System
    * SPEQS-2: Entanglement in LEO
    * Entangled photon sources I
    * Entangled photon sources II: PACES
    * Entangled photon sources III: POMO
    * Entangled photon sources IV: PAPA
    * Super resolution imaging
    * Single Photon Counters
    * Talking QKD
    * In the News
    * Outreach

 * Publications
   
 * Conferences & Talks
   
 * More
   
    * The SpooQy Lab
    * Join Us!
    * 
      Team Members
       * Alexander Ling
       * Team Photos
   
    * 
      Projects
       * SpooQy-1
       * Satellite Constellations
       * Space-based Quantum Communication - Animations
       * SPEQS-0: Near-Space Demonstration
       * SPEQS-1: Small Photon-Entangling Quantum System
       * SPEQS-2: Entanglement in LEO
       * Entangled photon sources I
       * Entangled photon sources II: PACES
       * Entangled photon sources III: POMO
       * Entangled photon sources IV: PAPA
       * Super resolution imaging
       * Single Photon Counters
       * Talking QKD
       * In the News
       * Outreach
   
    * Publications
    * Conferences & Talks






THE SPOOQY LAB



Congratulations to Angelina Frank SpooK#4 and Wu Shuin Jian SpooK#5. They have
graduated from our team with their PhD degrees!

Do you want to be graduate from our team with a PhD? Join us and get your own
SpooK number!



 * SpooK#5, Wu Shuin Jian, is the lead author on a recent publication in
   Scientific Reports that quantifies the impact of repeated annealing on single
   photon detectors, in order to correct for in-orbit radiation damage. This
   will inform future quantum technology missions that wish to correct for
   radiation damage. See: Sci Rep 14, 23331 (2024).

 * Entanglement distribution over 155 km of metropolitan fiber is reported on
   the arXiv: https://arxiv.org/abs/2409.17558. PhD student Du Jinyi is the lead
   author.

 * Polarization QKD with room temperature single photon emitters that are
   compatible with the telecom wavelengths is reported on the arXiv:
   https://arxiv.org/abs/2409.17060. PhD student Zhang Xingjian is the lead
   author.

 * We have published an International Perspective for PRX Quantum discussing how
   small satellites can enable QKD. This work was done collaboratively with our
   colleagues in the UK and Canada. Kudos to Tanvirul Islam for leading the
   authorship of this work! PRX Quantum 5, 030101 (2024). 

 * Tanvirul Islam led the work on this publication in Scientific Reports. The
   article describes how random number generators could be configured to
   preserve their privacy, while allowing external validation of the entropy. 
   Scientific Reports 14, Article number: 11337 (2024) 

 * CQT PhD student Du Jinyi is the first author on a paper describing some
   straightforward techniques for extracting quantum light efficiently from
   photonic integrated chips. A fruitful outcome from paying attention to small
   details. Read it here: Optics Express 32 (7), 11406 (2024). Update: Top
   download in Optics Express for the month it was published!

 * We have a joint publication with an international team on shaping the
   transverse modes of photons through multimode optical fibers using mechanical
   perturbations. APL Photonics 8, 096109 (2023) 

We are a multi-disciplinary group at the Centre for Quantum Technologies in
Singapore.  We are located on the National University of Singapore campus.  Our
work leverages optical technology for building compact, rugged & effective
optical entanglement systems used for testing fundamental physics and
demonstrating quantum-assisted applications. We work with a wide range of
optical tools, and have an active interest in nonlinear optics including bulk
and waveguide materials. Systems integration (optics, electronics & mechanical
design) is a key theme of our work and undergraduate students are encouraged to
take part in our projects.  





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