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oai:www.ideals.illinois.edu:2142/32042 2023-07-10 col_2142_8888 col_2142_5131 com_2142_8887 com_2142_234 com_2142_5130

Goddard, Lynford L. Leburton, Jean-Pierre Lu, Chien-Yao Chuang, Shun-Lien Chuang, Shun-Lien Eckstein, James N. 2012-06-27T21:30:05Z 2012-06-27T21:30:05Z 2014-06-28T10:00:27Z 2012-05 2012-06-27T21:30:05Z 2012-05 Metal-cavity surface-emitting micro/nanolasers are proposed and demonstrated. The design uses metals as both the cavity sidewall and the top/bottom reflectors and maintains the surface-emitting nature. As a result of the large permittivity contrast between the dielectric and metal, the optical energy can be well-confined inside the metal nanocavity. Flip-bonding the device to a silicon substrate with a conductive metal provides efficient heat removal. Several excellent performance characteristics have been observed such as ultra-narrow linewidth, low thermal impedance, and circular beam shapes. The devices proposed and realized are substrate-free with transferability to other platforms. The size of the proposed structure can be further reduced without severe degradation in the performance. This work provides a detailed theoretical model starting from the waveguide analysis to full structure simulations by taking into account both the geometry and the metal dispersion. Several substrate-free metal-cavity surface emitters are demonstrated. Advanced metal-cavity surface-emitting microlasers with submonolayer quantum dots are used as the active medium. Fabrication and experimental data are reported for electrical injection metal-cavity quantum-dot surface-emitting microlasers at room temperature. Detailed studies are conducted of size-dependent cavity modes for future size reduction. This thesis presents the accomplishment of the first room temperature metal-cavity surface-emitting microlaser with the best performance among the existing metal-cavity lasers. A further size reduction strategy for future work will be discussed and analyzed theoretically. Item withdrawn by Mark Zulauf (zulauf@illinois.edu) on 2012-04-06T18:17:21Z Item was in collections: University of Illinois Theses & Dissertations (ID: 1) No. of bitstreams: 2 PhD Dissertation-cylu-uploaded.zip: 7609643 bytes, checksum: adc38878045f21d8c2ce2153e6a9761d (MD5) Lu_Chien-Yao.pdf: 10320486 bytes, checksum: 2b561845b127a90c056736f49c915b9b (MD5) Made available in DSpace on 2012-06-27T21:30:05Z (GMT). No. of bitstreams: 3 Lu_Chien-Yao.pdf: 10320486 bytes, checksum: 2b561845b127a90c056736f49c915b9b (MD5) license.txt: 4055 bytes, checksum: 191e3d01993caa6eb2eee384e4c69252 (MD5) PhD Dissertation-cylu-uploaded.zip: 7609643 bytes, checksum: adc38878045f21d8c2ce2153e6a9761d (MD5) Item marked as restricted to the 'Administrator' Group (id=1) by William Ingram (wingram2@illinois.edu) on 2012-06-27T21:32:43Z Item is restricted until 2014-06-27T21:32:23Z Item reinstated by Sarah Shreeves (sshreeve@illinois.edu) on 2014-06-28T10:00:27Z Item was in collections: Dissertations and Theses - Electrical and Computer Engineering (ID: 446) Graduate Theses and Dissertations at Illinois (ID: 204) No. of bitstreams: 3 Lu_Chien-Yao.pdf: 10320486 bytes, checksum: 2b561845b127a90c056736f49c915b9b (MD5) license.txt: 4055 bytes, checksum: 191e3d01993caa6eb2eee384e4c69252 (MD5) PhD Dissertation-cylu-uploaded.zip: 7609643 bytes, checksum: adc38878045f21d8c2ce2153e6a9761d (MD5) Item released from any restrictions by Sarah Shreeves (sshreeve@illinois.edu) on 2014-06-28T10:00:27Z http://hdl.handle.net/2142/32042 en Copyright 2012 Chien-Yao Lu metal-cavity Vertical-cavity surface-emitting lasers (VCSEL) semiconductor laser Metal-cavity surface-emitting nanolasers text Electrical & Computer Eng 1933 Electrical & Computer Engr 1200 University of Illinois at Urbana-Champaign Dissertation Ph.D. PHD:Electr & Computer Eng-UIUC 10KS1200PHD