Hologram fixing process at room temperature in photorefractive Bi12SiO20crystals
作者:
J. P. Herriau,
J. P. Huignard,
期刊:
Applied Physics Letters
(AIP Available online 1986)
卷期:
Volume 49,
issue 18
页码: 1140-1142
ISSN:0003-6951
年代: 1986
DOI:10.1063/1.97446
出版商: AIP
数据来源: AIP
摘要:
We present the first demonstration of a room‐temperature grating fixing process in a photorefractive Bi12SiO20crystal. This arises from a space‐charge compensation due to a hole conduction when the crystal is placed in the dark for 1–3 min. The grating is optically revealed by redistribution of photoelectrons through the uniform illumination of the crystal. After compensation and optical revelation, the readout time constant of the grating is increased by a factor of 40×. Electrical revelation of fixed gratings and holographic images is also demonstrated.
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