Graphene Nanoelectromagnetism: Active/Passive Plasmons & Nanobiosensing
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Graphene Nanoelectromagnetism: Active/Passive Plasmons & Nanobiosensing
Fri, 03/11/2017 - 14:15 to 15:15
Location:
Speaker:
Dr. Pai-Yen Chen
Affiliation:
Wayne State University, USA
Synopsis:
Graphene is a flat, two-dimensional monolayer of carbon atoms predicted to display a rich variety of electronic, photonics, and optoelectronic behaviors, as it is a unique gapless semiconductor that exhibits the field-effect-controlled conductivity and the photoexcited plasmon gain. In my talk, I will give an overview of our recent research progress in graphene-based photonics, optoelectronics, and bioelectronics. First, I will discuss the gate-tunable passive (equilibrium) and active (population-inversion) plasmons in the graphene bilayer/monolayer, and the associated guided and leaky modes in the THz-to-MIR region. Then, I will present the parity-time (PT) symmetric optical systems based on the photopumped graphene metasurfaces, which show not only the interesting reciprocal and unidirectional scattering responses, but also the singularity-enhanced sensing of molecular and chemical agents. Finally, I will present a novel all-graphene wireless sensor that consists of a chemically-sensitive RF modulator formed by graphene transistors and an optically-transparent graphene antenna, paving the way towards ultracompact, transparent and flexible wireless sensors, wearables and implants.
Biography:
Dr. Pai-Yen Chen is an Assistant Professor in the Department of Electrical and Computer Engineering at the Wayne State University, USA. He received his Ph.D. degree from the University of Texas at Austin in 2013. He was a Research Scientist at the Intellectual Ventures' Metamaterial Commercialization Center (2013-2014), and a Research Staff in the National Nano Device Laboratory in Taiwan (2006-2009). He has published approximately 70 peer-review papers, 60 conference proceedings, 1 book, 6 book chapters, and 9 US patents, including several journal coverages. He has been involved in multidisciplinary research on applied electromagnetics, high-frequency electronics, plasmonics and nanophotonics, as well as their biometric and sensing applications.
He has received IEEE Sensors Council Early Career Award, Young Scientist Award from URSI General Assembly and URSI Commission B: Electromagnetics, Air Force Research Laboratory Faculty Fellowship, Argonne National Laboratory Director’s Fellowship, Donald D. Harrington Fellowship, Ernest K. Smith Student Paper Prize, Taiwan Ministry of Education Study Abroad Award, United Microelectronics Corporation (UMC) Scholarship, and several travel grants and best student papers (including supervised students) in major IEEE conferences. He has years of dedicated service to the IEEE, SPIE and other societies, including the TPC/Session Chair in annual conferences and Associated Editor in IEEE Journal of EEE Journal of Electromagnetics, RF and Microwaves in Medicine and Biology (J-ERM) and Advanced Electromagnetics, and Guest Editor in other international journals. He is an IEEE Senior Member. More information can be found at his website: http://pychen.eng.wayne.edu.