Optical characteristics of liquid-crystal domains probed by a focused laser beam

Parshin, A.M.

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For Russian citation (Opticheskii Zhurnal):

Паршин А.М. Оптические характеристики жидкокристаллических доменов, зондируемых сфокусированным лазерным лучом // Оптический журнал. 2018. Т. 85. № 1. С. 29–33. http://doi.org/10.17586/1023-5086-2018-85-01-29-33

Parshin A.M. Optical characteristics of liquid-crystal domains probed by a focused laser beam [in Russian] // Opticheskii Zhurnal. 2018. V. 85. № 1. P. 29–33. http://doi.org/10.17586/1023-5086-2018-85-01-29-33

For citation (Journal of Optical Technology):

A. M. Parshin, "Optical characteristics of liquid-crystal domains probed by a focused laser beam," Journal of Optical Technology. 85(1), 22-25 (2018). https://doi.org/10.1364/JOT.85.000022

Abstract:

A technique for determining the optical characteristics of the domain structures of nematic liquid crystals using a focused laser beam is presented. The dependences of the intensity of polarized light on the voltage of a separate nematic domain formed by a polycarbonate surface in the presence of a magnetic field are obtained. It is shown that the optical characteristics cannot be interpreted within the framework of the concept of light scattering, which is suitable in the case of an ensemble of domains probed by a wide laser beam. The analysis of the results is based on the assumption of gradient index optics.

Keywords:

laser radiation, light intensity, interference, liquid crystal, polycarbonate

Acknowledgements:

The research was supported by the Russian Foundation for Basic Research (RFBR) (15-02-06924, 16-53-00073); Siberian Branch, Russian Academy of Sciences (SB RAS) (2P 0356-2015-0410, 0356-2015-041).

OCIS codes: 160.3710, 230.3720, 260.3160

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