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Research

Quantum light sources

Quantum light sources1.jpg

 

We are interested in generation of quantum states of light for their application in nano- and quantum optical studies.

The emerging field of quantum optical applications including quantum information, quantum computation, and quantum metrology is believed to bring a huge impact on human lives in near future. The successful development of quantum optical science and technology highly relies on our ability of generating high quality quantum light sources. Here, in our laboratory, we generate various quantum states of light:

 · Single photons from single emitters (single molecule, quantum dots, detect centers in crystal)
 · Squeezed, and entangled photons by utilizing SPDC (spontaneous parametric down conversion).

With quantum light sources we are carrying on the following studies:

 · Quantum optical sensing (imaging). This is for overcoming the classical limits in the sensitivity and the resolution.

      - quantum correlated photons : quantum nonlinear imaging

      - diamond NVs : quantum (nano)-magnetometry

      - Heralded single photons : contextual metrology

 · Quantum computing (photon based).

      - Photon cluster state : measurement-based quantum computing   

 

¨Selected Papers 

 

  · Quantum Plasmonic Sensors, Chem. Rev. 121, 4743 (2021).
  · An experimental study on the blinking suppression mechanism of organic-inorganic formamidinium lead halide perovskite quantum dots on N-Type semiconductors“, APL Mat. 8, 031102 (2020). selected as “Editor’s Pick”
  · Experimental demonstration of quantum learning speedup with classical input data“, Phys. Rev. A 99, 012313 (2019).
  · Quantum plasmonic sensing using single photons“, Opt. Express 26, 29272 (2018).
  · Organic–Inorganic FAPbBr3 Perovskite Quantum Dots as a Quantum Light Source: Single-Photon Emission and Blinking Behaviors“, ACS Photon. 5, 4937 (2018).

 

  · Also see, Lectures on “Single photon generation with single emitters”

           https://www.youtube.com/watch?v=dBhnQmuE0AI&t=88s