All-optically controlled light valve assembled by photorefractive crystal and PDLC hybrid structure

Vera Marinova, Ren Chung Liu, Ming S. Chen, Shiuan-Huei Lin, Yi-Hsin Lin, Ken-Yuh Hsu

研究成果: Conference contribution同行評審

2 引文 斯高帕斯(Scopus)

摘要

A light-valve device, assembled by Ru-doped Bi12SiO20 (BSO) photoconductive substrate and polymer dispersed liquid crystal layer is proposed, in which all the processes are controlled by the near infrared light. Laser beam illumination (Gaussian shape) on BSO:Ru crystal caused charge carriers generation, which migrate and form an inhomogeneous distribution and subsequent space charge field. This surface-localized electromagnetic field penetrates into the PDLC layer and modulate the orientation of the liquid crystals, that caused reverse of the device initial opaque state to the highly transparent one. The proposed structure is simple and easy to fabricate, without requirements of ITO contacts and alignment layers and opens further possibilities for near-infrared applications.

原文English
主出版物標題Holography
主出版物子標題Advances and Modern Trends IV
編輯Miroslav Hrabovsky, Antonio Fimia, John T. Sheridan
發行者SPIE
ISBN(電子)9781628416299
DOIs
出版狀態Published - 1 1月 2015
事件Holography: Advances and Modern Trends IV - Prague, Czech Republic
持續時間: 15 4月 201516 4月 2015

出版系列

名字Proceedings of SPIE - The International Society for Optical Engineering
9508
ISSN(列印)0277-786X
ISSN(電子)1996-756X

Conference

ConferenceHolography: Advances and Modern Trends IV
國家/地區Czech Republic
城市Prague
期間15/04/1516/04/15

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