Second-harmonic generation in asymmetric quantum dots in the presence of a static magnetic field |
| |
| Authors: | Li Xue-Chao Wang An-Min Wang Zhao-Liang Yang Yang |
| |
| Affiliation: | Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China |
| |
| Abstract: | The second-harmonic generation (SHG) coefficient in an asymmetric quantum dot (QD) with a static magnetic field is theoretically investigated. Within the framework of the effective-mass approximation, we obtain the confined wave functions and energies of electrons in QD. We also obtain the SHG coefficient by the compact-density-matrix approach and the iterative method. The numerical results for the typical GaAs/AlGaAs QD show that the SHG coefficient depends strongly on the magnitude of magnetic field, parameters of the asymmetric potential and the radius of the QD. The resonant peak shifts with the magnetic field or the radius of the QD changing. |
| |
| Keywords: | quantum dot nonlinear optical rectification magnetic field |
| 本文献已被 CNKI 维普 等数据库收录！ |
| 点击此处可从《中国物理 B》浏览原始摘要信息 |
|
点击此处可从《中国物理 B》下载免费的PDF全文 |
