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NCUEIR > College of Science > Graduate Institute of Photonics Technologies > Periodical Articles > Item 987654321/18212

Please use this identifier to cite or link to this item: http://ir.ncue.edu.tw/ir/handle/987654321/18212

Title:	Two-Color Holographic Recording in a Single-Doped Photorefractive LiNbO3 Crystal
Authors:	Liu, Jung-Ping;Chen, Hong-Shyuan;Su, Wei-Chia
Contributors:	光電科技研究所
Keywords:	Two-color recording;Lithium niobate;Holographic storage;M-number;Sensitivity
Date:	2009-03
Issue Date:	2014-04-01T03:56:51Z
Publisher:	Society of Photo-Optical Instrumentation Engineers
Abstract:	We recorded a hologram in a photorefractive LiNbO3:Fe crystal with a two-color recording technique in transmission geometry. The holographic recording involves a light with wavelength 633 nm for interference, and a light with wavelength 532 nm for exciting. The short wavelength light excites more charges so that the holographic recording is affected, and the storage capacity (M-number) and the sensitivity vary accordingly. We found that the optimized intensity ratio of the interference lights and the exciting light is between 50 and 60. In the optimized conditions, the M number and the sensitivity are enhanced by 43 and 35%, respectively. Because the crystal we used is a typical iron-doped LiNbO3 crystal and the short wavelength exciting light source is inexpensive now, the proposed method is easy to be achieved in most holographic systems.
Relation:	Optical Engineering, 48(3): 030501
Appears in Collections:	[Graduate Institute of Photonics Technologies] Periodical Articles

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