Photon Frequency Diffusion Process

Diffusion based photon mapping

Photon correlation in single-photon frequency upconversion.

We experimentally investigated the intensity cross-correlation between the upconverted photons and the unconverted photons in the single-photon frequency upconversion process with multi-longitudinal mode pump and signal sources. In theoretical analysis, with this multi-longitudinal mode of both signal and pump sources system, the properties of the signal photons could also be maintained as in t...

Photon Frequency Entanglement Swapping

We propose a simple non-linear crystal based optical scheme for experimental realization of the frequency entanglement swapping between the photons belonging to two independent biphotons. Entangled states allowed by quantum theory result in purely quantum non-local correlations which do not occur in classical physics. The correlations of that kind underlie the well-known EPR effect [1] which wa...

Photon Diffusion in Biological Tissues

The use of laser-based optical techniques for medical imaging is an attractive alternative to other methods that utilize ionizing radiation. Beside being non-carcinogenic, it is non-invasive, the equipment is transportable, and the methodology can be used to examine properties of soft tissue. However, unlike x-ray photons, optical photons generated in the near-infrared suffer significant amount...

Photon statistics in the three-photon hyper-Raman process.

The photon statistics of various nonlinear optical processes has been a subject of increasing interest in recent years. In particular, photon statistics for the usual Raman process has been analyzed theoretically by Simaan in detail. ' The similar hyper-Raman (HR) process has also been studied already by Simaan, who formulated the master equation of the process giving the solution by the Laplac...