Electro-optical device based on photonic structure with a dual-frequency cholesteric liquid crystal

Yu Cheng Hsiao, Chong Yin Wu, Chih Heng Chen, Victor Ya Zyryanov, Wei Lee

Research output: Contribution to journalArticle

45 Citations (Scopus)


An electrically tunable and polarizer-free photonic device is developed using a one-dimensional photonic crystal (PC) infiltrated with dual-frequency cholesteric liquid crystal (DFCLC) as a defect layer. The PC/DFCLC hybrid cell allows the employment of various frequency-modulated voltage pulses to regulate defect modes and switch between stable states. This device possesses many alluring features such as rapid bistable switching, intensity tunability, and wavelength tunability in the defect modes, and it requires no polarizers. It can be used as a filter, fast-speed shutter, or light-intensity modulator.

Original languageEnglish
Pages (from-to)2632-2634
Number of pages3
JournalOptics Letters
Issue number14
Publication statusPublished - Jul 15 2011
Externally publishedYes


ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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