| 利用偏振光控制的光学转换新方法 |
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| 引用本文： | 杨庆鑫,张娅娜,魏振乾,孙桂娟,李峰.利用偏振光控制的光学转换新方法[J].光子学报,2000,29(12):1073-1076. |
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| 作者姓名： | 杨庆鑫 张娅娜 魏振乾 孙桂娟 李峰 |
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| 作者单位： | 1. 吉林大学物理系, 长春130023;2. 吉林大学化学系, 长春130023 |
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| 基金项目： | 国家自然科学基金资助项目(597905001) |
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| 摘 要： | 报道了一种新的非相干-相干光学转换方法,该方法利用了偏振光对含偶氮材料中自衍射的增强和抑制作用,所用样品为具有较大光致双折射(δn=1.3×10-2)的偶氮掺杂聚合物薄膜.研究结果表明,当泵浦光偏振方向与两束记录光垂直/平行时,衍射效率得到了极大的增强/抑制.本文通过改变泵浦光的偏振方向得到了入射非相干图象的正片和负片.
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| 关 键 词： | 偶氮掺杂聚合物 光致双折射 自衍射 偏振增强/抑制 光学转换 |
| 收稿时间： | 2000-03-23 |
| 修稿时间： | 2000-03-23 |
POLARIZATION DEPENDENT ENHANCEMENT/RESTRAINT OPTICAL CONVERSION IN AZOBENZENE DOPED POLYMER FILM |
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| Yang Qingxin,Zhang Yana,Wei Zhenqian,Sun Guijuan,Li Feng.POLARIZATION DEPENDENT ENHANCEMENT/RESTRAINT OPTICAL CONVERSION IN AZOBENZENE DOPED POLYMER FILM[J].Acta Photonica Sinica,2000,29(12):1073-1076. |
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| Authors: | Yang Qingxin Zhang Yana Wei Zhenqian Sun Guijuan Li Feng |
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| Institution: | 1. Department of Physics, Jilin University, Changchun 130023, People’s Republic of China;2. Department of Chemistry, Jilin University, Changchun 130023, People’s Republic of China |
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| Abstract: | A new optical conversion based on polarization dependent optical enhancement/restraint in self-diffraction (PDOESD/PDORSD) is reported.The employed sample is an azobenzene doped polymer film,which possesses large magnitude of photo-induced birefringence:δn=1.3×10-2.The extreme PDOESD/PDORSD was performed when the polarization of exciting laser was perpendicular/parallel to that of the two coherent recording beams.Both positive and negative replicas of incident image were obtained by means of this optical conversion technique. |
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| Keywords: | Azobenzene doped polymer Photoinduced birefringence Self-diffraction Polarization dependent enhancement/restraint Optical conversion |
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