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1 March 2009 Two-color holographic recording in a single-doped photorefractive LiNbO3 crystal
Jung-Ping Liu, Hong-Shyuan Chen, Wei-Chia Su
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Optical Engineering, Vol. 48, Issue 3, 030501 (March 2009). https://doi.org/10.1117/1.3095915
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.
©(2009) Society of Photo-Optical Instrumentation Engineers (SPIE)
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Jung-Ping Liu, Hong-Shyuan Chen, and Wei-Chia Su "Two-color holographic recording in a single-doped photorefractive LiNbO3 crystal," Optical Engineering 48(3), 030501 (1 March 2009). https://doi.org/10.1117/1.3095915
Published: 1 March 2009
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KEYWORDS
Crystals
Holography
Diffraction
Diode pumped solid state lasers
Holograms
Light sources
Neon
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