准零维纳米结构中单粒子电子态的光吸收:理论

Sergey I. Pokutnyi , Yuriy N. Kulchin , Vladimir P. Dzyuba
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引用次数: 1

摘要

本文研究了半导体量子点中载流子单粒子量子约束态与电磁场相互作用的理论。结果表明,量子点中单粒子态跃迁的振子强度和偶极矩是大参数,超过了块体半导体材料的典型参数。在偶极近似的背景下,证明了准零维系统的大光学吸收截面使得这种系统可以作为有效的吸收材料使用。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Optical absorption of one-particle electron states in quasi-zero-dimensional nanogeterostructures: Theory

The paper is devoted to the theory for the interaction of an electromagnetic field with one-particle quantum-confined states of charge carriers in semiconductor quantum dots. It is demonstrated that the oscillator strengths and dipole moments of the transitions for one-particle states in quantum dots are large parameters, exceeding the corresponding typical parameters for bulk semiconductor materials. In the context of the dipole approximation, it is demonstrated that the large optical absorption cross sections in the quasi-zero-dimensional systems enable the use of such systems as efficient absorbing materials.

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