标题: | HOLOGRAM ENHANCEMENT IN PHOTOREFRACTIVE MEDIA |
作者: | YEH, PC GU, C CHENG, CJ HSU, KY 光电工程学系 Department of Photonics |
关键字: | PHOTOREFRACTIVE NONLINEAR OPTICS;HOLOGRAPHY;PHASE CONJUGATION |
公开日期: | 1-八月-1995 |
摘要: | We consider the possibility of restoration and/or enhancement of decaying holograms in photorefractive media by using a simple optical readout in conjunction with a phase conjugator. The results indicate that extremely weak holograms can be enhanced provided that the two-beam coupling is sufficiently strong. Steady-state photorefractive holograms can be maintained continuously without decay by using a properly designed readout scheme. The result also provides an explanation for the formation of mutually pumped phase conjugation in terms of the amplification of initial noise gratings. |
URI: | http://hdl.handle.net/11536/1793 |
ISSN: | 0091-3286 |
期刊: | OPTICAL ENGINEERING |
Volume: | 34 |
Issue: | 8 |
起始页: | 2204 |
结束页: | 2212 |
显示于类别: | Articles |
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