Interface phonon–polaritons in quantum well systems of polar ternary mixed crystals
Interface phonon–polaritons in quantum well systems of polar ternary mixed crystals
复制标题
极性三元混晶量子阱系统中的界面声子-极化子
DOI：
10.1088/1674-1056/19/9/094101
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发表时间：
2010
影响因子：
1.7
通讯作者：
["包锦
中科院分区：
文献类型：
--
作者：
["包锦
研究了由极性三元混合晶体组成的量子阱系统中的界面声子-极化子。得到了GaAs/ AlxGa1-xAs、ZnSxSe1-x /ZnS和ZnxCd1-xSe /ZnSe量子阱系统中界面声子-极化子频率的数值计算结果并进行了讨论。结果表明，系统中存在六个声子-极化子界面模式分支，分布在三个体声子-极化子禁带中。给出了界面声子-极化子的电场，并显示了模式的界面局部性。色散曲线显示了三元混合晶体的“双模”和“单模”行为对界面声子-极化子模式的影响。
The interface phonon–polaritons in quantum well systems consisting of polar ternary mixed crystals are investigated. The numerical results of the interface phonon-polariton frequencies in the GaAs/AlxGa1–xAs, ZnSxSe1–x/ZnS, and ZnxCd1–xSe/ZnSe quantum well systems are obtained and discussed. It is shown that there are six branches of interface phonon-polariton modes distributed in three bulk phonon-polariton forbidden bands in the systems. The electric fields of interface phonon–polaritons are also presented and show the interface locality of the modes. The effects of the 'two-mode' and 'one-mode' behaviours of the ternary mixed crystals on the interface phonon-polariton modes are shown in the dispersion curves.