Method of order parameter estimation for liquid crystal in the electro-optical cell from absorption band dichroism

Dmitrii F. Kiselev; Tatiana M. Glushkova; Sergei A. Ivanov; Marina M. Firsova; Antonina P. Shtyrkova

doi:10.1117/12.435993

10 August 2001 Method of order parameter estimation for liquid crystal in the electro-optical cell from absorption band dichroism

Dmitrii F. Kiselev, Tatiana M. Glushkova, Sergei A. Ivanov, Marina M. Firsova, Antonina P. Shtyrkova

Author Affiliations +

Proceedings Volume 4517, Lightmetry: Metrology, Spectroscopy, and Testing Techniques Using Light; (2001) https://doi.org/10.1117/12.435993
Event: Lightmetry, 2000, Pultusk, Poland

Abstract

In this work the polarization absorption spectrum of homeotropically oriented comb-shaped liquid crystal polymer (LCP) film interposed in the electro-optical cell was investigated. The optical parameters of electrodes were estimated from the observed absorption spectra of the cell with and without polymer film using the method of interferometric extrema envelopes. This method enabled us to re-establish the true polarization absorption spectrum of the polymer. For this purpose the refractive index dispersion data of the substrates and the polymer obtained by independent investigation were used.

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Dmitrii F. Kiselev, Tatiana M. Glushkova, Sergei A. Ivanov, Marina M. Firsova, and Antonina P. Shtyrkova "Method of order parameter estimation for liquid crystal in the electro-optical cell from absorption band dichroism", Proc. SPIE 4517, Lightmetry: Metrology, Spectroscopy, and Testing Techniques Using Light, (10 August 2001); https://doi.org/10.1117/12.435993

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