| 厚高阶光学非线性介质Z扫描的变分法分析 |
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| 引用本文： | 刘智波,臧维平,田建国,周文远,张春平,张光寅.厚高阶光学非线性介质Z扫描的变分法分析[J].光学学报,2003,23(6):41-645. |
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| 作者姓名： | 刘智波 臧维平 田建国 周文远 张春平 张光寅 |
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| 作者单位： | 南开大学物理科学学院光子学中心,天津,300071 |
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| 基金项目： | 国家杰出青年基金 (6 0 0 2 5 5 12 )，国家自然科学基金(18974 0 32 )，教育部重点研究项目 (0 0 0 2 6 )，教育部骨干教师计划，霍英东教育基金会青年教师基金 (710 0 8)资助课题 |
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| 摘 要： | 利用变分法对具有五阶光学非线性介质的Z扫描特性进行了研究。通过比较，发现当介质在具有较大的五阶非线性系数或较大光强的情况下，五阶非线性项的作用是不可忽略的。这对光限制器的设计和Z扫描实验都具有一定的指导意义。
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| 关 键 词： | 变分法 非线性光学 Z扫描 五阶非线性介质 光介质 光束束腰 |
| 收稿时间： | 2002/3/29 |
Variational Approach to Analysis of Z-Scan in Thick Media With High Order Nonlinearity |
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| Liu Zhibo Zang Weiping Tian Jianguo Zhou Wenyuan,Zhang Chunping Zhang Guangyin.Variational Approach to Analysis of Z-Scan in Thick Media With High Order Nonlinearity[J].Acta Optica Sinica,2003,23(6):41-645. |
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| Authors: | Liu Zhibo Zang Weiping Tian Jianguo Zhou Wenyuan Zhang Chunping Zhang Guangyin |
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| Abstract: | By variational approach, the characteristic of Z-scan in thick media with high order nonlinearity is theoretically analyzed. In comparison with the result of Z-scan only considering the third-order nonlinearity. It is found out that the fifth-order nonlinearity can not be neglected when the media has large fifth-order nonlineartiy or the intensity of laser is more powerful. These results are useful in searching high performance optical nonlinear materials and designing optical limiter. |
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| Keywords: | nonlinear optics Z-scan fifth-order nonlinearity variational approach |
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