| Original Articles |
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Anomalies of Doped-LiNbO3 Crystal in Photorefractive Phase Conjugation with Relation to Structural Phase Transformation |
| LIU J in-song1;LIANG Chang-hong1;AN Yu-ying1;LI Ming-hua2;XU Yu-heng2;WU Zhong-kang3 |
| 1Department of Applied Physics, Xidian University, Xian 710071
2Department of Chemistry, Harbin Institute of Technology, Harbin 150001
3Department of Physics Nankai University, Tianjin 300071 |
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| Cite this article: |
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LIU J in-song, LIANG Chang-hong, AN Yu-ying et al 1996 Chin. Phys. Lett. 13 137-140 |
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Abstract We investigate the photorefractive phase conjugation in a Ce:Fe:LiNbO3 crystal as a function of temperature (293-393 K) and find the phase conjugate reflectivity increases sharply in the vicinity of 55, 70 and 110°C. The anomalous phenomenon is possibly concerned with the structural phase transformation of a crystal, which induces an extra internal electric field to influence the phase conjugation. The value of the field is estimated at the order of 105 V/m, in agreement with the published data.
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| Keywords:
78.20.-e
72.20.-i
42.65.Hw
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Published: 01 February 1996
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| PACS: |
78.20.-e
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(Optical properties of bulk materials and thin films)
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72.20.-i
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(Conductivity phenomena in semiconductors and insulators)
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42.65.Hw
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(Phase conjugation; photorefractive and Kerr effects)
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