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关于美国俄克拉荷马大学杨瑞青教授学术报告的通知

报告题目:Interband Cascade Devices and Related Applications

演讲人:杨瑞青教授 Prof. Dr. Ruiqing Yang, School of Electrical and Computer Engineering, University of Oklahoma (OU) 

时间:6月9日下午 13:30-15:30

地点:玉泉校区教3-338

Abstract:The family of interband cascade (IC) devices includes mid-infrared IC lasers (ICLs) [1-3], IC infrared photodetectors (ICIPs) [4] and photovoltaic (PV) cells [5]. These devices take advantage of the broken bandgap alignment in type-II InAs/Ga(In)Sb quantum wells to realize cascade stages for high device performance. Since the proposal in 1994 [1], IC lasers have been developed to become the most efficient semiconductor mid-IR laser sources in terms of low power consumption [2-3] and have been operated successfully in Curiosity Rover on Mars(好奇号火星探测车)for detection of CH4. They are now commercially available for many applications such as chemical sensing and environmental monitoring. Also, photodetectors and photovoltaic cells with the IC architecture have flexibilities and advantages to achieve high device performance. In this talk, I will review the unique features and prospects of IC devices and discuss their related applications and recent progress including InAs-based IC lasers [6], long-wavelength IC infrared photodetectors [7], and a monolithically integrated IC laser and photodetector [8]. 

References:

1. R.Q. Yang, at 7th Inter. Conf. on Superlattices, Microstructures and Microdevices, Banff, Canada, August, 1994; Superlattices and Microstructures 17, 77 (1995); “Novel concepts and structures for infrared lasers”, chapter 2 in Long Wavelength Infrared Emitters Based on Quantum Wells and Superlattices, M. Helm, editor, Gordon and Breach, Singapore, 2000. 

2. R.Q. Yang, Chap. 12 in Semiconductor lasers: fundamentals and applications, edited by A. Baranov and E. Tournie (Woodhead Publishing Limited, Cambridge, UK), 2013. 

3. I. Vurgaftman, R. Weih, M. Kamp, J.R. Meyer, C.L. Canedy, C.S. Kim, M. Kim, W.W. Bewley, C.D. Merritt, J. Abell, and S. Höfling, J. Phys. D. Appl. Phys. 48, 123001 (2015). 

4. R.Q. Yang, Z. Tian, Z. Cai, J.F. Klem, M.B. Johnson, H.C. Liu, J. Appl. Phys. 107, 054514 (2010). 

5. R.Q. Yang, H. Lotfi, L. Li, R.T. Hinkey, H. Ye, J.F. Klem, L. Lei; T.D. Mishima, J.C. Keay, M.B. Santos, M.B. Johnson, Proc. SPIE. 8993, 899310 (2014). 

6. L. Li, Y. Jiang, H. Ye, R.Q. Yang, T.D. Mishima, M.B. Santos, and M.B. Johnson, Appl. Phys. Lett, 106, 251102 (2015). 

7. L. Lei, L. Li, H. Ye, H. Lotfi, R.Q. Yang, M.B. Johnson, J.A. Massengale, T.D. Mishima, and M.B. Santos, J. Appl. Phys. 120, 193102 (2016). 

8. H. Lotfi, L. Li, S.M.S. Rassel, R.Q. Yang, C.J. Corrège, M.B. Johnson, P.R. Larson, and J.A. Gupta, Appl. Phys. Lett. 109, 151111 (2016). 

Biography: Dr. Yang received the B.Sc. degree in physics from Zhejiang University in 1982, and the M.Sc. and Ph.D. degrees in physics from Nanjing University in 1984 and 1987, respectively. He is the inventor of interband cascade (IC) lasers with research activities ranging from condensed matter physics to semiconductor quantum devices. Prior to joining OU as a professor in 2007, he was a Principal Member of Engineering Staff and a Task Manager at the Jet Propulsion Laboratory (JPL) in California, where he led the development of advanced mid-IR IC lasers for applications in Earth sciences and planetary explorations. He is a fellow of both OSA and IEEE. More information about his group can be found from http://QDL.ou.edu/