Evaluation of the Phase Modulation During V-Shaped Switching in a Smectic Liquid Crystal Device

In this work, V-shaped liquid crystals are proposed for phase modulation optical devices. The aim is to measure the relationship between phase shift and the applied voltage by an experimental set-up based on an interferometer. The optical retardation of the liquid crystal medium could then be determ...

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Bibliographic Details
Published inMolecular crystals and liquid crystals (Philadelphia, Pa. : 2003) Vol. 494; no. 1; pp. 272 - 281
Main Authors Urruchi, V., Gaona, N., Sánchez-Pena, J. M.
Format Journal Article
LanguageEnglish
Published Taylor & Francis Group 02.12.2008
Subjects
electrooptic
interference
liquid crystal
modulation
phase shift
V-shaped
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Summary:In this work, V-shaped liquid crystals are proposed for phase modulation optical devices. The aim is to measure the relationship between phase shift and the applied voltage by an experimental set-up based on an interferometer. The optical retardation of the liquid crystal medium could then be determined simply by measuring the phase difference of the waves of the two arms. By supplying a voltage, the liquid crystal molecules are reoriented and the effective refractive index of the liquid crystal changes. Preliminary results show that the devices may be used such as phase modulators, but the phase modulation is polarization sensitive.
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ISSN:1542-1406
1563-5287
1543-5318
DOI:10.1080/15421400802429960