| 强激光条件下5CB液晶中的激光诱导衍射环现象 |
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| 引用本文： | 赵祥杰,张大勇,王海峰,骆永全,罗飞.强激光条件下5CB液晶中的激光诱导衍射环现象[J].光子学报,2011(8):1166-1171. |
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| 作者姓名： | 赵祥杰 张大勇 王海峰 骆永全 罗飞 |
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| 作者单位： | 中国工程物理研究院流体物理研究所; |
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| 基金项目： | 中国工程物理研究院科学技术发展基金(No.2010B0401049)资助 |
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| 摘 要： | 强激光经5CB液晶传播时会产生非线性自相位调制现象,利用532 nm和1 064 nmCW激光研究了强激光条件下5CB液晶中的激光诱导衍射环现象,并对强激光在5CB液晶中产生自相位调制的现象和机理进行了讨论.当532 nm激光和1 064 nm激光功率密度分别大于10 kW/cm2和300W/cm2时,接收白屏上有较明...
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| 关 键 词： | 强激光 衍射环 向列相液晶 基尔霍夫衍射积分 |
Research on High Power Laser Induced Diffraction Ring in 5CB Liquid Crystal |
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| ZHAO Xiang-jie,ZHANG Da-yong,WANG Hai-feng,LUO Yong-quan,LUO Fei.Research on High Power Laser Induced Diffraction Ring in 5CB Liquid Crystal[J].Acta Photonica Sinica,2011(8):1166-1171. |
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| Authors: | ZHAO Xiang-jie ZHANG Da-yong WANG Hai-feng LUO Yong-quan LUO Fei |
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| Institution: | ZHAO Xiang-jie,ZHANG Da-yong,WANG Hai-feng,LUO Yong-quan,LUO Fei(Institute of Fluid Physics,China Academy of Engineering Physics,Mianyang,Sichuan 621900,China) |
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| Abstract: | Self-phase modulation phenomena was found in 5CB liquid crystal,which accounted for the far field diffraction ring phenomena induced by high power laser traversing thin liquid crystal cell.Experimental and numerical methods were employed to study the mechanism of the self-phase modulation in 5CB.Experimental results indicate that diffraction ring phenomena can be found when the incident laser intensity rise to 10 kW/cm2 and 60 W/cm2 for 532 nm and 1 064 nm laser separately,but will disappear when the effect... |
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| Keywords: | High power laser Diffraction ring Nematic liquid crystal Thermal effect Kirhoff diffraction integral |
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