...
首页> 外文期刊>Physica Scripta: An International Journal for Experimental and Theoretical Physics >The effect of spatial symmetry on the nonlinear optical rectification of lens-shaped quantum dots
【24h】

The effect of spatial symmetry on the nonlinear optical rectification of lens-shaped quantum dots

机译:空间对称性对透镜形量子点非线性光学整流的影响

获取原文
获取原文并翻译 | 示例
           

摘要

The one-band k·p model, the compact density matrix approach and the iterative method are used to calculate the nonlinear optical rectification coefficient (ORC) of an electron confined in an asymmetric lens-shaped quantum dot (ALQD). Numerical results are presented for the typical GaAs ALQD. The effects of the size of the ALQD, the incident photon energy and the symmetry of the QD on the ORC are investigated. It is found that there is a scaling rule that connects the ORC to the size of the ALQD. Using this scaling rule, it is shown that the ORC increases, and its peak shifts to lower energies, with increasing dot size. Also, the ORC decreases with increasing mirror symmetry of the QD.
机译:采用单带k·p模型,紧致密度矩阵法和迭代法计算了局限在非对称透镜形量子点(ALQD)中的电子的非线性光学整流系数(ORC)。给出了典型GaAs ALQD的数值结果。研究了ALQD尺寸,入射光子能量和QD对称性对ORC的影响。发现存在将ORC连接到ALQD大小的缩放规则。使用此缩放规则,可以显示ORC随着点大小的增加而增加,并且其峰值移至较低的能量。而且,ORC随着QD镜像对称性的增加而降低。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号