具有光折射放大反馈的向列液晶的光学双稳性

Topical Meeting on Photorefractive Materials, Effects, and Devices II Pub Date : 1989-04-01 DOI:10.1080/00150198908211336

M. Ingold, J. Keller, G. Pauliat, P. Günter

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引用次数: 4

摘要

向列液晶[1]和光折变晶体(KNbO3)[2]的折射率变化已被用于设计光学双稳器件[3]。在向列型液晶(NLC)中，光可以重新定位光子分子。因此，放置在交叉偏振片之间的NLC充当光控门。在KNbO3晶体中，光折变双光束耦合用于光放大。

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Optical Bistability of a Nematic Liquid Crystal with Photorefractively Amplified Feedback

Light induced changes of the refractive index in a nematic liquid crystal [1] and in a photorefractive crystal (KNbO3) [2] have been used to design an optically bistable device [3]. In the nematic liquid crystal (NLC) light can reorient biréfringent molecules. Therefore the NLC, placed between crossed polarizers, acts as an optically controlled gate. In the KNbO3 crystal photorefractive two-beam coupling is used for light amplification.

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来源期刊

$Topical Meeting on Photorefractive Materials, Effects, and Devices II$

Topical Meeting on Photorefractive Materials, Effects, and Devices II

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