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We report a heralded single photon source model; it consists on active two-dimensional crystal over LiNbO3 excited by a laser source at (1310 nm and 1550 nm). Photons detected through the crystal are filtered to eliminate of the laser source one. The photons at 1310 nm and 1550 nm will be spatially separated; the photon at 1310 nm is the trigger to announce the photon at 1550 nm. The contribution...
We analyze the behaviour of a quantum dot embedded in a photonic crystal add-drop filter and in a direct coupled photonic crystal microcavity for optical signal processing applications. The joint effect of dipole induced transparency and electromagnetic induced transparency, considering a cascade configuration of the quantum dot, are used to modify the behaviour of the whole system. The mathematical...
We demonstrate the coherent control of an excited atom in photonic crystals, in which its relaxation is strongly suppressed compared with that in the control using the photonic bandgap (PBG) switching. This suggests the possibility of extending the atomic system to a low-loss quantum logic gate for quantum information processing.
The field of nonlinear optics is over forty years old, but is still fresh to our minds and currently producing novel research directives and applications. Indeed, with the advent of material engineering at the nano-scale, nonlinear optics is undergoing a new revolution. The study of high optical nonlinearity in nano material for quantum communication has generated interest in its potential use as...
We demonstrated for the first time to our knowledge deterministically polarized fluorescence from single dye molecules. Planar aligned nematic liquid crystal hosts provide deterministic alignment of single dye molecules in a preferred direction.
The following topics were dealt with: optical tweezers; optical fluidics in fibers; detection and imaging; photonic crystal detection; optofluidic lasers (dye lasers); quantum cryptography; photon-matter conversion; quantum communication system research and quantum network architectures
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