Nonlinear Phenomena in Complex Systems, 2013, Vol.16, No.3, pp.302-308

NONLINEAR PHENOMENA IN COMPLEX SYSTEMS
An Interdisciplinary Journal

2013, Vol.16, No.3, pp.302-308

Operation with Laser Radiation by Using of Liquid Crystal Elements
A. A. Kazak, A. L. Tolstik, E. A. Melnikova, and A. A. Komar

A new method of creation the electrically controlled diffraction elements has been proposed and experimentally implemented , which is based on a nematic liquid crystal and orienting photopolymer material. These elements were developed to form singular optical beams with a given topological charge and to transform a linearly polarized light beam into a beam with radial or azimuthal polarization. Also, was investigated the propagation of laser radiation in a spatially structured layers of nematic liquid crystal with an anomalously high value of birefringence and the laws of reflection of light beams at the boundary between the two mesophases were founded. The conditions for total internal reflection, waveguide propagation and polarization separation of light beams were identified..

Key words: LC photoalignment, photosensitive polymer, anisotropic gratings, polymeric nonlinear optical media

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