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Research

Quantum light sources

Quantum light sources1.jpg

 

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

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

 · Singlephotons from single emitters (single molecule, quantum dots, detect centers incrystal)
 · Squeezed,and entangled photons by utilizing SPDC (spontaneous parametric downconversion).

With quantum light sources we arecarrying on the following studies:

 · Quantumoptical sensing (imaging). This is for overcoming the classical limits in thesensitivity and the resolution.

      - quantum correlated photons : quantumnonlinear imaging

      - diamond NVs : quantum(nano)-magnetometry

      - Heralded single photons : contextualmetrology

 · Quantumcomputing (photon based).

      - Photon cluster state :measurement-based quantum computing   

 

¨SelectedPapers 

 

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

 

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

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