Polarization dependence of optical absorption in a cylindrical semiconductor quantum dot

Cui-Hong Liu; Da Xing

doi:10.1117/12.710699

27 October 2006 Polarization dependence of optical absorptions in a cylindrical semiconductor quantum dot

Cui-Hong Liu, Da Xing

Proceedings Volume 6047, Fourth International Conference on Photonics and Imaging in Biology and Medicine; 604735 (2006) https://doi.org/10.1117/12.710699
Event: Fourth International Conference on Photonics and Imaging in Biology and Medicine, 2005, Tianjin, China

Abstract

Optical absorptions due to intraband transition in a QD are studied theoretically. The conduction band energy levels were calculated for a cylinder quantum dot with finite confining potential in the framework of the effective-mass envelope-function theory. Numerical calculations on a typical GaAs/AlAs QD are performed for different incident laser energies. It is found that the optical absorptions are very sensitive to the incident radiation wave vector. The effect could be utilized for the realization of polarization-sensitive detectors.

Citation Download Citation

Cui-Hong Liu and Da Xing "Polarization dependence of optical absorptions in a cylindrical semiconductor quantum dot", Proc. SPIE 6047, Fourth International Conference on Photonics and Imaging in Biology and Medicine, 604735 (27 October 2006); https://doi.org/10.1117/12.710699

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KEYWORDS

Absorption

Polarization

Quantum dots

Semiconductors

Electrons

Transition metals

Complex systems

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