Laser-induced phase transitions in liquid crystals and distributed feedback-fluctuations, energy exchange, and instabilities: squeezed polarized states and intensity correlations

Sergei M. Arakelian; Yu. S. Chilingaryan; R. B. Alaverdyan; A. P. Alodjants; V. E. Drnoian; A. S. Karaian

doi:10.1117/12.47492

1 April 1991 Laser-induced phase transitions in liquid crystals and distributed feedback-fluctuations, energy exchange, and instabilities: squeezed polarized states and intensity correlations

Sergei M. Arakelian, Yu. S. Chilingaryan, R. B. Alaverdyan, A. P. Alodjants, V. E. Drnoian, A. S. Karaian

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Proceedings Volume 1402, USSR-CSFR Joint Seminar on Nonlinear Optics in Control, Diagnostics, and Modeling of Biophysical Processes; (1991) https://doi.org/10.1117/12.47492
Event: USSR-CSFR Joint Seminar on Nonlinear Optics in Control, Diagnostics and Modeling, 1990, Koshice-Prague, Czechoslovakia

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.

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Sergei M. Arakelian, Yu. S. Chilingaryan, R. B. Alaverdyan, A. P. Alodjants, V. E. Drnoian, and A. S. Karaian "Laser-induced phase transitions in liquid crystals and distributed feedback-fluctuations, energy exchange, and instabilities: squeezed polarized states and intensity correlations", Proc. SPIE 1402, USSR-CSFR Joint Seminar on Nonlinear Optics in Control, Diagnostics, and Modeling of Biophysical Processes, (1 April 1991); https://doi.org/10.1117/12.47492

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KEYWORDS

Process modeling

Nonlinear optics

Polarization

Liquid crystals

Diagnostics

Nonlinear control

Stochastic processes

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