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Optics and Spectroscopy

Mesoscopic quantum properties and the fundamental limit of switching of polarization states of light in spatially periodic systems

A. Yu. Leksin, A. P. Alodjants, Sergei M Arakelyan

Published May 1, 2003• 2 citations
Publisher

Abstract

Quantum analysis of the nonlinear dynamics and self-switching of unidirectional waves in nonlinear systems with distributed feedback is carried out in the Hartree approximation. Quantum limitations on the observation of self-switching are found for the polarization characteristics of light. The formation of nonclassical mesoscopic states of light is predicted. The phenomenon of optical “superfluidity” in systems with distributed feedback is discussed.

DOI
10.1134/1.1576849

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Quantum analysis of the nonlinear dynamics and self-switching of unidirectional waves in nonlinear systems with distributed feedback is carried out in the Hartree approximation. Quantum limitations on the observation of self-switching are found for the polarization characteristics of light. The formation of nonclassical mesoscopic states of light is predicted. The phenomenon of optical “superfluidity” in systems with distributed feedback is discussed.
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Laser-induced bulk gratings and temporal instabilities of nonlinear wave processes with different components of light polarization have been studied in the liquid crystals (LC). A mirrorless feedback arises because of the non-local nonlinear response of an anisotropic elastic medium on the external field. The multiplicative nature of the molecular fluctuations in the LC under external field are discussed and the light-induced reorientation effects in this medium can be considered as a noise-induced phase transition. . The quantum aspects of behavior of the radiation fluctuations for passing through the LC light are considered. A new method of formation of quantum states of the light in the linear system at dynamic diffraction is discussed for the first time. The squeezed states of the field and the photon superbunching are obtained for two geometries (Bragg and Laue) of diffraction in spatially periodic medium. The approach gives a new opportunities for a verification of quantum properties of the light in experiment.