...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Physical review. B, Condensed Matter And Materials Physics >Exciton and polariton dispersion curves of In_xGa_(1-x)As/GaAs)(001) superlattice quantum wells: Model calculation
【24h】

Exciton and polariton dispersion curves of In_xGa_(1-x)As/GaAs)(001) superlattice quantum wells: Model calculation

机译：In_xGa_（1-x）As / GaAs）（001）超晶格量子阱的激子和极化子色散曲线：模型计算

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Wannier exciton dispersion curves of In_xGa_(1-x)As/GaAs(001) quantum well superlattice are obtained by computing exciton energies, for different K points in the corresponding Brillouin zone, using a variational exciton envelope function model. The effective mass and the spatial dispersion of the exciton show strong variations depending on energy bands and K points. Polariton dispersion curves are computed in the semiclas-sical framework by using a nonlocal exciton susceptibility and solving self-consistently the Schroedinger-Maxell equations. Photon dispersion curves of the one-dimensional photonic crystal, resulting from the periodicity of the dielectric constant in the superlattice, are also computed and reported in comparison with exciton and polariton bands. In order to mimic mesoscopic uniaxial photonic crystals, the versatility of In_xGa_(1-x)As/GaAs(001) superlattice is highlighted by selected numerical examples.
机译：In_xGa_（1-x）As / GaAs（001）量子阱超晶格的Wannier激子弥散曲线是通过使用变分激子包络函数模型计算对应布里渊区中不同K点的激子能量而获得的。激子的有效质量和空间色散根据能带和K点表现出很大的变化。通过使用非局部激子磁化率并自洽求解Schroedinger-Maxell方程，可在半经典框架中计算极化子色散曲线。与激子和极化子带比较，还计算和报告了由于超晶格中介电常数的周期性而产生的一维光子晶体的光子色散曲线。为了模拟介观单轴光子晶体，In_xGa_（1-x）As / GaAs（001）超晶格的多功能性通过选定的数值示​​例突出显示。

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