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Chang, Yia-Chung Citrin, David Scott 2011-05-07T12:07:05Z 2011-05-07T12:07:05Z 10000-01-01 1992 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. Made available in DSpace on 2011-05-07T12:07:05Z (GMT). No. of bitstreams: 2 license.txt: 4922 bytes, checksum: 910b249b4beec47e7ab768910c8f966f (MD5) 9215794.pdf: 5089759 bytes, checksum: 4c31cd605e564f6c7b1444354ad36328 (MD5) Previous issue date: 1992 Item marked as restricted to the 'UIUC Users [automated]' Group (id=2) by Howard Ding (hding2@illinois.edu) on 2011-05-07T14:36:52Z Item is restricted indefinitely. Restriction data tranferred 2014-07-01T11:15:01-05:00 Original Data Group with Access UIUC Users [automated] Release Date: none Reason: ETDs are only available to UIUC Users without author permission ETDs are only available to UIUC Users without author permission U of I Only AAI9215794 (UMI)AAI9215794 http://hdl.handle.net/2142/19424 eng Copyright 1992 Citrin, David Scott Engineering, Electronics and Electrical Physics, Condensed Matter Physics, Optics Optical properties of semiconductor quantum wires text Physics Physics University of Illinois at Urbana-Champaign Dissertation Ph.D.