| Original Articles |
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Optimal Recording Wavelength for Nonvolatile Photorefractive Holograms in Ce:Cu:LiNbO |
| DAI Cui-Xia 1;YU Ying-Jie 1;LIU De-An 2;LIU Li-Ren2 |
| 1College of Mechatronics of Engineering and Automation, Shanghai University, Shanghai 2000722Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800 |
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| Cite this article: |
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DAI Cui-Xia, YU Ying-Jie, LIU De-An et al 2007 Chin. Phys. Lett. 24 710-712 |
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Abstract Three wavelengths of red, green and blue of recording beams are systemically tested for the UV-assistant recording and optical fixing
of holograms in a strongly oxidized Ce:Cu:LiNbO3 crystal. Three different hotorefractive phenomena are observed. It is shown that the green beams will optimally generate a critical strong nonvolatile hologram with quick sensitivity and the optimal switching technique could be jointly used to obtain a nearly 100% high diffraction. Theoretical verification is given, and a prescription on the doping densities and on the oxidation/reduction states of the material to match a defined recording wavelength for high diffraction is suggested.
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| Keywords:
42.40.Ht
42.40.Pa
42.70.Nq
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Received: 27 August 2006
Published: 08 February 2007
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| PACS: |
42.40.Ht
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(Hologram recording and readout methods)
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42.40.Pa
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(Volume holograms)
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42.70.Nq
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(Other nonlinear optical materials; photorefractive and semiconductor materials)
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[10] McMillen D K, Hudson T D, Wagner J and Singleton J 1998 Opt. Exp. 2 491 |
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