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Proceedings Paper

Laser-induced phase transitions in liquid crystals and distributed feedback-fluctuations, energy exchange, and instabilities: squeezed polarized states and intensity correlations
Author(s): Sergei M. Arakelian; Yu. S. Chilingaryan; R. B. Alaverdyan; A. P. Alodjants; V. E. Drnoian; A. S. Karaian
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Paper Abstract

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.

Paper Details

Date Published: 1 April 1991
PDF: 17 pages
Proc. SPIE 1402, USSR-CSFR Joint Seminar on Nonlinear Optics in Control, Diagnostics, and Modeling of Biophysical Processes, (1 April 1991); doi: 10.1117/12.47492
Show Author Affiliations
Sergei M. Arakelian, Yerevan State Univ. (Armenia)
Yu. S. Chilingaryan, Yerevan State Univ. (Armenia)
R. B. Alaverdyan, Yerevan State Univ. (Armenia)
A. P. Alodjants, Yerevan State Univ. (Armenia)
V. E. Drnoian, Yerevan State Univ. (Armenia)
A. S. Karaian, Yerevan State Univ. (Armenia)

Published in SPIE Proceedings Vol. 1402:
USSR-CSFR Joint Seminar on Nonlinear Optics in Control, Diagnostics, and Modeling of Biophysical Processes
Sergei A. Akhmanov; Victor N. Zadkov, Editor(s)

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