Copyright by Qingwei Mo 2004
The Dissertation Committee for Qingwei Mo certifies that this is the approved version of the following dissertation:
Vertical Cavity Surface Emitting Laser Based on GaAs/Air-gap Distributed Bragg Reflectors: From Concept to Working Devices
Committee: _____________________________________ Dennis G. Deppe, Supervisor _____________________________________ Dean P. Neikirk _____________________________________ Jack C. Lee _____________________________________ Ananth Dodabalapur _____________________________________ John G. Ekerdt
Vertical Cavity Surface Emitting Laser Based on GaAs/Air-gap Distributed Bragg Reflectors: From concept to Working Devices
by Qingwei Mo, B.E., M.S.E
Dissertation Presented to the Faculty of the Graduate School of the University of Texas at Austin in Partial Fulfillment of the Requirements for the Degree of Doctor of Philosophy
The University of Texas at Austin December 2004
To my grandmother, Gao Yanyun, my parents, Mo Yunda and Gao Shunrong, and my wife, Peng Weiping
iv
Acknowledgements
I would like to express my appreciation to my supervisor, Dr. Dennis G. Deppe, who led me into the VCSEL field and kept inspiring and challenging me with exciting ideas and projects. I would also like to thank Dr. Dean P. Neikirk, Dr. Jack C. Lee, Dr. Ananth Dodabalapur and Dr. John G. Ekerdt for their time as my committee and giving me many good suggestions and helps. Many thanks go to Dr. Diana Huffaker, who taught me VCSEL design and processing, and Dr. Gyoungwon Park, who shared his great experience of device processing with me. My partnership with Dr. Hao Chen is very enjoyable and it is also critical to the success of this project. Dr. Oleg Shchekin provided many good samples and insightful suggestions in my research. My Thanks also go to my fellow graduate students in our group: Zhengzhong Zou, Hua Huang, Chuanshun Cao, Dingyuan Lu, Zhihong Huang, Manhong Zhang, Sonia, Sam, Jaemin and Deepa. Thanks for the companionship and assistance. Finally, I wish to express my gratitude to my grandmother. This appreciation will be kept in my heart until I can find a way to deliver it to her in the heaven. I appreciate my parents for always being there for me and supporting my pursuing of educations and a meaningful life. My sister and brother have been supportive to me all the time. But most importantly, I want to thank my dear wife, Weiping, who endured the poverty, uncertainty and all those ups and downs in our graduate-student life, and in retaliation, provided only love, encouragement and delicious food. I look forward to the adventure ahead we are going to explore together.

下一页