期刊
OPTICAL REVIEW
卷 21, 期 2, 页码 99-109出版社
OPTICAL SOC JAPAN
DOI: 10.1007/s10043-014-0016-y
关键词
photorefractive effect; organic compounds; ferroelectric liquid crystals; two beam coupling; dynamic hologram
类别
资金
- Japan Science and Technology Agency (JST) S-innovation
- Canon Foundation
In this paper, we review recent progress of research on the photorefractive effect of ferroelectric liquid crystals. The photorefractive effect is a phenomenon that forms a dynamic hologram in a material. The interference of two laser beams in a photorefractive material establishes a refractive index grating. This phenomenon is applicable to a wide range of devices related to diffraction optics including 3D displays, optical amplification, optical tomography, novelty filters, and phase conjugate wave generators. Ferroelectric liquid crystals are considered as a candidate for practical photorefractive materials. A refractive index grating formation time of 8-10 ms and a large gain coefficient are easily obtained in photorefractive ferroelectric liquid crystals. (C) 2014 The Japan Society of Applied Physics
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