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Title:Optical properties of semiconductor quantum wires
Author(s):Citrin, David Scott
Doctoral Committee Chair(s):Chang, Yia-Chung
Department / Program:Physics
Degree Granting Institution:University of Illinois at Urbana-Champaign
Subject(s):Engineering, Electronics and Electrical
Physics, Condensed Matter
Physics, Optics
Abstract:This thesis presents theoretical investigations of the subband structure and optical properties of semiconductor quantum wires. For the subband structure, we employ multiband effective-mass theory and the effective bond-orbital model both of which fully account for the band mixing and material anisotropy. We also treat the structure geometry in detail taking account of such effects as the compositional grading across material interfaces. Based on the subband structure, we calculate optical properties of quantum-wire structures. A recurring theme is the cross-over from one- to two-dimensional behavior in these structures. This complicated behavior procludes the application of simple theoretical models to obtain the electronic structure. In particular, we calculate laser properties of quantum wires grown in V-grooves and find enhanced performance compared with quantum-well lasers. We also investigate optical anisotropy in quantum-wire arrays and propose an electro-optic device based on such structures.
Issue Date:1992
Rights Information:Copyright 1992 Citrin, David Scott
Date Available in IDEALS:2011-05-07
Identifier in Online Catalog:AAI9215794
OCLC Identifier:(UMI)AAI9215794

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