| 强耦合激子-声子系统中的三阶非线性光学系数的理论计算 |
| |
| 引用本文： | 姚鸣,朱卡的,袁晓忠,蒋逸文,吴卓杰.强耦合激子-声子系统中的三阶非线性光学系数的理论计算[J].光子学报,2005,34(10):1480-1484. |
| |
| 作者姓名： | 姚鸣 朱卡的 袁晓忠 蒋逸文 吴卓杰 |
| |
| 作者单位： | [1]宁夏大学物理电气信息学院,银川750001 [2]上海交通大学物理系,上海200030 |
| |
| 基金项目： | 国家自然科学基金（No.10274051）、上海市自然科学基金（No.03ZRl4060）资助课题. |
| |
| 摘 要： | 应用Dyson-Maleev变换，对强耦合激子—声子系统中非线性光学性质进行了理论研究.结果表明，当信号光场频率与激子频率的失谐量等于光学声子的频率时，系统的非线性光学吸收和克尔（Kerr）系数显著增大，从而证明了激子-声子的强相互作用对介质的非线性光学性质的影响相当大，并且当考虑激子偏离玻色子模型时，这种影响将进一步增大.
|
| 关 键 词： | 非线性光学效应 克尔系数 激子 光学声子 相空间填充因子 |
| 收稿时间： | 2005-04-12 |
| 修稿时间： | 2005年4月12日 |
Theoretical Calculation of the Third Order Nonlinear Optical Properties in Strongly Coupled Exciton-Phonon Systems |
| |
| Yao Ming, Zhu Kadi, Yuan Xiaozhong,.Theoretical Calculation of the Third Order Nonlinear Optical Properties in Strongly Coupled Exciton-Phonon Systems[J].Acta Photonica Sinica,2005,34(10):1480-1484. |
| |
| Authors: | Yao Ming Zhu Kadi Yuan Xiaozhong |
| |
| Affiliation: | 1.School of Physics and Electrical Information Science, Ningxia University, Yinchuan 750001; 2 Department of Physics, Shanghai Jiao Tong University, Shanghai 200030 |
| |
| Abstract: | The third order nonlinear optical properties in strongly coupled exciton-phonon systems are investigated theoretically. It is shown that as the signal field frequency detuning from the exciton frequency is equal to the optical phonon frequency the nonlinear optical absorptions and Kerr coefficient are enhanced significantly. The results also demonstrate that the phase-space filling effect has an evident impact on the nonlinear optical properties of the system. |
| |
| Keywords: | Nonlinear optical effect~ Kerr coefficient~ Exciton~ Optical phonon Phase-space filling |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《光子学报》浏览原始摘要信息 |
|
点击此处可从《光子学报》下载全文 |
