SELECTIVE REFLECTION BY HELICOIDAL LIQUID CRYSTALS. RESULTS OF AN EXACT CALCULATION USING THE 4 multiplied by 4 CHARACTERISTIC MATRIX METHOD.

I. Abdulhalim; L. Benguigui; R. Weil

doi:10.1051/jphys:01985004605081500

SELECTIVE REFLECTION BY HELICOIDAL LIQUID CRYSTALS. RESULTS OF AN EXACT CALCULATION USING THE 4 multiplied by 4 CHARACTERISTIC MATRIX METHOD.

I. Abdulhalim, L. Benguigui, R. Weil

Research output: Contribution to journal › Article › peer-review

75 Scopus citations

Abstract

The exact calculation of the reflection from single domain aligned samples of helicoidal liquid crystals (SmC* or cholesterics) is performed using the 4 multiplied by 4 matrix formulation of Maxwell equations in anisotropic media. We show that the expansion, approximation up to the 1st order of Berreman and Scheffer, is not adequate to describe the real situation, especially concerning the short wavelength region (heights of peaks, number of branches in the reflection band and their dependence on the different parameters).

Original language	English
Pages (from-to)	815-825
Number of pages	11
Journal	Journal De Physique
Volume	46
Issue number	5
DOIs	https://doi.org/10.1051/jphys:01985004605081500
State	Published - 1 Jan 1985
Externally published	Yes

ASJC Scopus subject areas

General Engineering

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abstract = "The exact calculation of the reflection from single domain aligned samples of helicoidal liquid crystals (SmC* or cholesterics) is performed using the 4 multiplied by 4 matrix formulation of Maxwell equations in anisotropic media. We show that the expansion, approximation up to the 1st order of Berreman and Scheffer, is not adequate to describe the real situation, especially concerning the short wavelength region (heights of peaks, number of branches in the reflection band and their dependence on the different parameters).",

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AB - The exact calculation of the reflection from single domain aligned samples of helicoidal liquid crystals (SmC* or cholesterics) is performed using the 4 multiplied by 4 matrix formulation of Maxwell equations in anisotropic media. We show that the expansion, approximation up to the 1st order of Berreman and Scheffer, is not adequate to describe the real situation, especially concerning the short wavelength region (heights of peaks, number of branches in the reflection band and their dependence on the different parameters).

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SELECTIVE REFLECTION BY HELICOIDAL LIQUID CRYSTALS. RESULTS OF AN EXACT CALCULATION USING THE 4 multiplied by 4 CHARACTERISTIC MATRIX METHOD.

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