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<p class="x_MsoNormal" align="center" style="text-align:center"><span style="font-size:10.5pt; font-family:"Arial","sans-serif"; color:#1F497D">***** Seminar *****</span><span style="color:#1F497D"></span></p>
<p class="x_MsoNormal" align="center" style="text-align:center"><b><span style="font-size:16.0pt; color:#1F497D">Department of Electrical and Computer Engineering</span></b><span style="font-size:16.0pt; color:#1F497D"></span></p>
<p class="x_MsoNormal" align="center" style="text-align:center"><b><span style="font-size:14.0pt; color:#1F497D">Center for Integrated Bio and Nano Systems</span></b></p>
<p class="x_MsoNormal" align="center" style="text-align:center"><b><span style="font-size:14.0pt; color:#1F497D"> IEEE Photonics Society </span></b></p>
<p class="x_MsoNormal" align="center" style="text-align:center"><b><span style="font-size:14.0pt; color:#1F497D">Feb. 1, 2019</span></b><span style="font-size:14.0pt; color:#1F497D"></span></p>
<p class="x_MsoNormal" align="center" style="text-align:center"><b><span style="font-size:14.0pt; color:#1F497D">10:30 a.m., Room: CBB 108
</span></b><span style="font-size:14.0pt; color:#1F497D"></span></p>
<p class="x_MsoNormal" align="center" style="text-align:center"><b><span style="font-size:18.0pt; color:#1F497D">III-V Semiconductor Unipolar Barrier Infrared Detectors </span></b></p>
<p class="x_MsoNormal" align="center" style="text-align:center"><span style="font-size:18.0pt"> <span style="color:#1F497D">David Ting</span></span></p>
<p class="x_MsoNormal" align="center" style="text-align:center"><span style="font-size:16.0pt; color:#1F497D">NASA Jet Propulsion Laboratory</span></p>
<p class="x_MsoNormal" style=""><b><span style="color:#1F497D">Abstract</span></b><span style="font-size:11.0pt; font-family:"Calibri","sans-serif"; color:#1F497D">:</span><span style="color:#1F497D"> The past decade has seen accelerated progress in III-V semiconductor
infrared photodetector technology. The advent of the unipolar barrier infrared detector device architecture has in many instances greatly alleviated generation-recombination (G-R) and surface-leakage dark current issues that had been problematic for many III-V
photodiodes. Meanwhile advances in a variety type-II superlattices (T2SLs) such as InGaAs/GaAsSb, InAs/GaSb, and InAs/InAsSb, as well as in bulk III-V material such as InGaAsSb and metamorphic InAsSb, have provided continuously adjustable cutoff wavelength
coverage from the short wavelength infrared (SWIR) to the very long wavelength infrared (VLWIR). The confluence of these developments has led to a new generation of versatile, cost-effective, high-performance infrared detectors and focal plane arrays based
on robust III-V semiconductors, providing a viable alternative to HgCdTe (MCT). </span>
</p>
<p class="x_MsoNormal" style=""><b><span style="color:#1F497D">Bio</span></b><span style="color:#1F497D">: David Z. Ting received the B.S. degree (Hons.) in physics from the California Institute of Technology, Pasadena, in 1980, and the M.S. and Ph.D. degrees
in physics from the University of Illinois at Urbana-Champaign in 1981 and 1986, respectively. He was a Senior Research Fellow in the Department of Applied Physics, Caltech, before joining the National Tsing Hua University, Hsinchu, Taiwan, as an Associate
Professor of Physics in 1995. In 1998 he joined the NASA Jet Propulsion Laboratory, Caltech, Pasadena, where he is a Senior Research Scientist, Principal Member of Engineering Staff, and Deputy Director of the Center for Infrared Photodetectors. His research
activities include the studies of electronic and optical properties of semiconductors, quantum transport in tunnel devices and nanostructures, spintronics, and infrared photodetectors. Results of his work have been reported in over 250 research publications
and in over 160 conference presentations and technical seminars. He holds 17 patents. He received the NASA Exceptional Technology Achievement Medal in 2014 for contribution and leadership in the invention and implementation of advanced infrared detector technology
for space and terrestrial applications. Dr. Ting is a senior member of the IEEE, and a Fellow of the SPIE.
</span></p>
<p class="x_MsoNormal" style=""><span style="color:#1F497D">Contact Prof. Jiming Bao <jbao@uh.edu> if you would like to meet with Dr.</span>
<span style="color:#1F497D">Bao.</span></p>
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