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| 基于ABCD矩阵的Z-扫描理论 | |
| 引用本文： | 王超,李渭龙,唐轶凡,任兆玉,张崇辉,白晋涛.基于ABCD矩阵的Z-扫描理论[J].光子学报,2007,36(3):444-447. |
| 作者姓名： | 王超 李渭龙 唐轶凡 任兆玉 张崇辉 白晋涛 |
| 作者单位： | 1. 西北大学,光子学与光子技术研究所,西安,710069 2. 西北大学,物理系,710069 |
| 基金项目： | 教育部国际科技合作项目 , 陕西省国际合作项目 |
| 摘 要： | 基于光学系统对傍轴激光束的传输与变换技术—ABCD定理,以非线性相移为研究对象,采用表征高斯光束特征的q参量在光束无像散近似假设下,分析了Z-扫描测量方法的理论基础,得到了表达简单的解析理论公式.在非线性相移｜ΔΦ0｜<π rad时,所得模拟结果可以很好地与已知理论结果相吻合.对CS2和纳米碳管乙醇溶液的非线性测量及数据的拟合,证明了用此结论进行数据分析的简洁性和优越性. |
| 关 键 词： | 三阶非线性极化率 ABCD定理 q参量 |
| 文章编号： | 1004-4213(2007)03-0444-4 |
| 收稿时间： | 2005-11-29 |
| 修稿时间： | 2005-11-28 |
Z-Scan Theory Based on ABCD Formalism |
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| WANG Chao,LI Wei-long,KANG Yi-fan,REN Zhao-yu,ZHANG Chong-hui,BAI Jin-tao.Z-Scan Theory Based on ABCD Formalism[J].Acta Photonica Sinica,2007,36(3):444-447. | |
| Authors: | WANG Chao LI Wei-long KANG Yi-fan REN Zhao-yu ZHANG Chong-hui BAI Jin-tao |
| Institution: | (1 Institute of Photonics&;Photon-Technology,Northwest University,Xi′an 710069,China) (2 Department of Physics,Northwest University,Xi′an 710069,China) |
| Abstract: | Based on the laser transmitting and transforming technology of ABCD theory,an analysis on the theoretical foundation of Z-scan has been made by employing an aberration-free approximation of a Gaussian beam and using the investigated object of nonlinear phase shifts directly,which resulted in some simple analytical expressions for Z-scan transmittance. Under the condition that ｜ΔΦ0｜<π,the simulated result is coincident with what has been known.Also the concision and advantage of data analysis using it can be proved by the two Z-scan experiments of CS2 and CNTs ethanol solution. |
| Keywords: | Third-order nonlinear susceptibility ABCD formalism q-parameter |
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