On July 4, 2022, the Aachen Graphene & 2D Materials Center will host a seminar of Prof. Taiichi Otsuji, from Tohoku University in Sendai, Japan.
Otsui is an expert in ultra-broadband devices and circuits. His group is working on the development of graphene-based terahertz lasers and ultrafast transistors for ultra-broadband wireless communication systems as well as for spectroscopic/imaging systems for safety and security. In his seminar, he will present the recent advances in the research of graphene Dirac plasmons for terahertz lasers, amplifiers, and detectors (see abstract below).
The seminar will take place at 2 pm in the seminar room of the ICT Cubes.
TITLE: Graphene Dirac plasmons for terahertz lasers, amplifiers, and detectors
ABSTRACT: Terahertz (THz) electromagnetic waves are important, but still unexplored frequency range bridging radio and light waves. Compact, high power, and room temperature coherent THz light sources are in high demand to realize numerous applications of THz waves. In particular, the next-generation ultra-high-speed, ultra-broadband 6G and 7G THz wireless communication systems are big stars with hopes to realize ubiquitous, sustainable, and resilient super-smart society. To make such systems possible, the realization of room-temperature, intense, and ultrafast laser transistors as well as highly sensitive, fast-response detectors operating in a wide sub-terahertz to terahertz range are the mandatory conditions. This seminar is dedicated to present recent advances in the research of graphene Dirac plasmons for terahertz lasers, amplifiers, and detectors.
TIME: Monday, July 4, 2022 – 14:00 (CET)
VENUE: ICT cube – Seminarraum 002
Institute der Elektrotechnik und Informationstechnik
Kopernikusstrasse 16,
52074 Aachen
SPEAKER BIO: Taiichi Otsuji received the Ph.D degree in electronic engineering from Tokyo Institute of Technology, Tokyo, Japan in 1994. After working at NTT Laboratories from 1984 to 1999, and Kyushu Institute of Technology from 1999 to 2005, he has been a professor at the Research Institute of Electrical Communication, Tohoku University, Sendai, Japan since 2005. His current research interests include terahertz electronic, photonic and plasmonic materials/devices. He has authored and co-authored 270 peer-reviewed journal papers, and holds 7 US patents. He was awarded the Outstanding Paper Award of the 1997 IEEE GaAs IC Symposium in 1998, Prizes for Science and Technology in Research Category, the Commendation for Science and Technology by the MEXT, Japan, in 2019, and the 59th Achievement Award of the IEICE, Japan, in 2022. He has served as an IEEE Electron Device Society Distinguished Lecturer since 2013. He is a Fellow of the IEEE, OPTICA, and JSAP.