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Chang, Yia-Chung Citrin, David Scott 2011-05-03T16:33:46Z 2011-05-03T16:33:46Z 10000-01-01 1992 This thesis presents theoretical investigations of the sub band 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 recuring theme is the cross-over from one- to ~wo-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. Submitted by Carolyn Mead (cmead2@illinois.edu) on 2011-05-03T16:33:46Z No. of bitstreams: 1 1992_citrin.pdf: 4746067 bytes, checksum: 09275186f23d83f99faaca502f26dc98 (MD5) Made available in DSpace on 2011-05-03T16:33:46Z (GMT). No. of bitstreams: 1 1992_citrin.pdf: 4746067 bytes, checksum: 09275186f23d83f99faaca502f26dc98 (MD5) Previous issue date: 1992 Restriction data tranferred 2014-07-01T11:11:24-05:00 Original Data Group with Access UIUC Users [automated] Release Date: none Reason: Thesis Item marked as restricted to the 'UIUC Users [automated]' Group (id=2) by Carolyn Mead (cmead2@illinois.edu) on 2011-05-03T16:33:46Z Item is restricted indefinitely. Thesis U of I Only 3471707 http://hdl.handle.net/2142/18901 en 1992 David Scott Citrin optics optical properties semiconductors quantum wires theoretical physics subband structure Optical properties of semiconductor quantum wires Dissertation / Thesis text Physics Physics University of Illinois at Urbana-Champaign Dissertation Ph.D.