Thermodielectric generation of defect modes in a photonic liquid crystal

Yu Cheng Hsiao, Hsiao Tsung Wang, Wei Lee

研究成果: 雜誌貢獻文章同行評審

21 引文 斯高帕斯(Scopus)

摘要

Photonic defect modes induced by in situ formation of an ill-defined defect layer is demonstrated in a cholesteric liquid crystal (CLC). The local deformation of the one-dimensionally periodic helical structure is achieved by means of the thermodielectric effect, which alters the pitch in the middle of the cholesteric structure. The defect-mode peak in the photonic band gap appears in the transmission spectrum only when the incident circularly polarized light has the same handedness as that of the CLC structure. The wavelength of the deformation-induced defect mode can be tuned upon varying the dielectric heating power by simply applying a frequency-modulated voltage.
原文英語
頁(從 - 到)3593-3599
頁數7
期刊Optics Express
22
發行號3
DOIs
出版狀態已發佈 - 二月 10 2014
對外發佈Yes

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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