Reaserch

Research topics I: Optical quantum information, including single photon source, entangled photon source and their applications in quantum information

  1. Single-photon source, including spectrally pure heralded single photon source from PPKTP, PPLN, BBO, KDP, etc
  2. Entangled photon source, including pulsed-Sagnac-PPKTP entangled photon source
  3. Multiphoton interference, including Hong-Ou-Mandel interference and NOON state interference
  4. Spectral-temporal manipualtion of entangled photonics, including quantum optical synthesis.
  5. Cross phase modulation in photonic crystal fiber; Quantum random walk.
  6. Entangled two-photon absorbtion.

Research topics II: Classical Optics

  1. Photons with orbital angular momentum (vortex beam)
  2. Laser Doppler vibrometer
  3. Machine learning
  4. 3D Measurement of surface roughness using optical interferometers

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Mathematica simulations

Spherical Aberration in a Plane-Convex Lens

Laser Alignment with a Convex-Plane Lens

Laser Beam through Two Points by Turning Two Mirrors

Gaussian Beam Propagation through Two Lenses

Periodic Wave Generated by a Pendulum Sandglass

Sagnac Interferometer with Two Mirrors

Sagnac Interferometer with Three Mirrors

Spectral Broadening Induced by Self-Phase Modulation

Spectral-Temporal Distribution of Biphotons from a Spontaneous Parametric Down Conversion (SPDC) Process