Tunable bi-functional photonic device based on one-dimensional photonic crystal infiltrated with a bistable liquid-crystal layer

Chong Yin Wu*, Yi Hong Zou, Ivan Timofeev, Yu Ting Lin, Victor Ya Zyryanov, Jy Shan Hsu, Wei Lee

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

26 Scopus citations

Abstract

We investigated the optical properties of a one-dimensional photonic crystal infiltrated with a bistable chiral tilted homeotropic nematic liquid crystal as the central defect layer. By modulating the nematic director orientation with applied voltage, the electrical tunability of the defect modes was observed in the transmission spectrum. The composite not only is a general tunable device but also involves the green concept in that it can operate in two stable states at 0 V. Under the parallel-polarizer scheme, the spectral characteristics suggest a potential application for this device as an energy-efficient multichannel optical switch.

Original languageEnglish
Pages (from-to)7349-7355
Number of pages7
JournalOptics Express
Volume19
Issue number8
DOIs
StatePublished - 11 Apr 2011

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