| 不同晶系中二阶非线性极化率及SHG信号的研究 |
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| 引用本文： | 蔡晃,黄志高,赖恒.不同晶系中二阶非线性极化率及SHG信号的研究[J].光子学报,1999,28(1):35-41. |
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| 作者姓名： | 蔡晃 黄志高 赖恒 |
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| 作者单位： | 福建师范大学物理系,福州,350007 |
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| 摘 要： | 本文在对称性理论的基础上,研究了立方晶系、三角晶系和六角晶系中不同晶体结构类型、不同晶面和界面、不同磁化强度M取向下的二阶非线性极化率χ(2)的表达式以及不同偏振组合下二阶非线性极化强度P(2)的表达式和反射的SHG信号。
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| 关 键 词： | 对称性 晶系 二阶非线性极化率 SHG信号 |
| 收稿时间： | 1998-10-12 |
| 修稿时间： | 1998-10-12 |
THE SECOND-ORDER NONLINEAR SUSCEPTIBILITY AND SHG SIGNAL IN THE DIFFERENT SYSTEM |
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| Cai Huang,Huang Zhigao,Lai Hen.THE SECOND-ORDER NONLINEAR SUSCEPTIBILITY AND SHG SIGNAL IN THE DIFFERENT SYSTEM[J].Acta Photonica Sinica,1999,28(1):35-41. |
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| Authors: | Cai Huang Huang Zhigao Lai Hen |
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| Institution: | Department of Physics, Fujian Normal University, Fuzhou 350007 |
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| Abstract: | Based on the symmetric theory,we study not only the expressions of the second order nonlinear susceptibilities at different crystal structures,different surfaces or interfaces and different magnetization directions in the cubic,trigonal and hexagonal system,but also their expressions of the second order nonlinear polarization and the reflected SHG signal with different polarization combinations. |
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| Keywords: | Symmetry System Second order nonlinear susceptibility SHG signal |
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