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期刊论文

Polarization of intersubband transitions in self-assembled quantum dots

盛卫东Weidong Shenga

APPLIED PHYSICS LETTERS 92, 043113 2008 ,-0001,():

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摘要/描述

Intersubband transitions in self-assembled quantum dots are studied by using a multiband tight-binding method. A picture different from that by the single-band effective-mass approximation is presented to reveal the origin of the polarization of the intersubband transitions. It is shown that the symmetry of those minor components from the valence bands in the electronic states accounts for the polarization of the intersubband transitions. A microscopic theory is presented to explain the pattern of symmetry of these minor components in the electronic states. The result is compared with a recent experiment. © 2008 American Institute of Physics.

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版权说明:以下全部内容由盛卫东上传于   2010年01月30日 18时14分31秒,版权归本人所有。

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