Tunable narrow-bandpass filter based on an asymmetric photonic bandgap structure with a dual-mode liquid crystal

Тип публикации: статья из журнала

Год издания: 2014

Идентификатор DOI: 10.1364/OE.22.015097

Ключевые слова: Defects, Electric fields, Liquid crystals, Photonics, Asymmetric structures, Bistable defects, Device application, Dual frequency liquid crystals, Photonic band-gap structures, Photonic structure, Spectral windows, Switchability, Photonic crystals

Аннотация: A one-dimensional asymmetric photonic crystal with dual-frequency liquid crystal as a central defect layer was demonstrated. Such asymmetric structure was characterized by the dramatic increase in intensity of the electric field of light localized at the overlapped photonic bandgap edges, thereby enhancing the observed transmittance of the spectral windows originating from the defect layer. The defect layer was made of a dual-mode liquid crystal that exhibited not only electrical tunability and switchability but also optical bistability. Consequently, tunable and bistable defect modes can be realized in the photonic structure. This asymmetric photonic crystal structure is promising and should be further explored for photonic device applications. (C) 2014 Optical Society of America

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Выпуск журнала: Vol. 22, Is. 12

Номера страниц: 15097-15103

ISSN журнала: 10944087

Место издания: WASHINGTON



  • Wang H.T. (College of Photonics, National Chiao Tung University)
  • Chang K. (College of Photonics, National Chiao Tung University)
  • Lee W. (College of Photonics, National Chiao Tung University)
  • Timofeev I.V. (Siberian Federal University)
  • Zyryanov V.Y. (Kirensky Institute of Physics, Krasnoyarsk Scientific Center, Siberian Branch of Russian Academy of Sciences)

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