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 journalArticlepeer-review

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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).

Original languageEnglish
Pages (from-to)815-825
Number of pages11
JournalJournal De Physique
Volume46
Issue number5
DOIs
StatePublished - 1 Jan 1985
Externally publishedYes

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