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国家自然科学基金(60278026)

作品数:3 被引量:3H指数:1
相关作者:王英利姚保利雷铭王韩毅门克内木乐更多>>
相关机构:中国科学院更多>>
发文基金:国家自然科学基金更多>>
相关领域:理学机械工程更多>>

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Photochromic and Photoelectric Applications of Bacteriorhodopsin
<正>Bacteriorhodopsin (BR), a photosensitive protein extracted from the microorganism Halobacterium salinarum, ...
Neimule MenkeNorbert Hampp
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基于相位共轭的动态体全息衍射特性的实时非破坏性测量被引量:1
2007年
基于相位共轭技术,提出了一种动态体全息衍射特性的实时测量方法.在光学系统设计中,通过调整使得物光和参考光较强,而与参考光共轭的再现光非常弱(约为参考光的1/1000),借助非常微弱的共轭再现光实现了动态体全息的非破坏性实时测量.三束光的强度和偏振态可通过1/4波片、偏振片和衰减片进行调节和组合,可记录光强调制型或偏振态调制型体全息.本方法适合于光致折射率变化和光致变色材料体全息的测量.
任立勇王韩毅姚保利王英利雷铭
关键词:相位共轭衍射
Experimental study on polarization holographic storage in genetic mutant BR-D96N film被引量:1
2004年
Recording with both parallel and orthogonal linearly polarized lights, polarization holographic storage in genetic mutant BR-D96N film is reported with both transmission type geometry and reflection type geometry. Polarization properties of diffraction light and scattering light are discussed for two different cases, parallel polarization recording and orthogonal polarization recording. It shows that, compared with recording with parallel polarization lights, orthogonal polarization holography can separate the diffraction light from the scattering noise, therefore improving the signal-to-noise ratio. It also shows that, compared with reconstruction with reference light, reconstruction with phase conjugated wave of the reference light can improve the signal-to-noise ratio of the reconstructed diffraction image, and also the wave-front aberration of the object light introduced by irregular phase object in the optical pass-way can also be corrected effectively, which ensures that the reconstructed diffraction image has a better fidelity. The preliminary angle-multiplexed volume holographic storage multiplexed by transmission type geometry and reflection type geometry is demonstrated in the BR-D96N film. Experiment shows that there is no cross-talk between the two pages of images except for some scattering noises.
MENKE NeimuleNorbert HAMPP
关键词:POLARIZATION
菌紫质薄膜光致折射率变化的理论计算和实验测量被引量:1
2005年
基因改性细菌视紫红质BR D96N由于M态寿命的延长而具有显著的光致变色特性 根据Kramers Kronig变换关系,样品吸收光谱的变化会引起样品折射率的变化 本文首先从实验上测量了BR D96N薄膜样品在光激发前后的吸收光谱,然后根据Kramers Kronig变换关系,理论计算了对应此光致变色光谱变化的光致折射率变化光谱 实验上为了直接测量样品的光致折射率变化,采用Michelson干涉方法测量BR D96N薄膜在不同探测波长下的光致折射率变化量。
董卫斌姚保利门克内木乐王英利郑媛雷铭陈国夫
关键词:细菌视紫红质光致变色
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