Eelectro-optic Behavior of Opal-LC Photonic Crystals

In this paper, we describe the electro-optic effects of photonic crystals made of a synthetic opal filled with a nematic liquid crystal(LC). By applying an external electric field, a shift in the Bragg reflection peak position(stop band) and a field-induced change in its peak reflectivity are observ...

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Bibliographic Details
Published inJournal of Information Display Vol. 2; no. 4; pp. 19 - 22
Main Author Kang, Dae-Seung
Format Journal Article
LanguageKorean
Published 2001
Subjects
electro optic
photonic band gap
bragg reflection
opal
photonic crystal
liquid crystal
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Summary:In this paper, we describe the electro-optic effects of photonic crystals made of a synthetic opal filled with a nematic liquid crystal(LC). By applying an external electric field, a shift in the Bragg reflection peak position(stop band) and a field-induced change in its peak reflectivity are observed. These significant surface alignment effects of the opal-LC composite are discussed in a similar manner for Freederick-type transitions of LC within a confined geometry in the presence of external fields.
Bibliography:KISTI1.1003/JNL.JAKO200124282636247
ISSN:1598-0316
2158-1606