Terahertz Nano-Optoelectronics
Speaker: Professor H.C. Liu, National Research Council of Canada
When: 2007-11-30 11:00:00
Venue: 78-420
Host: Aleksandar Rakic and Halina Rubinsztein Dunlop
Abstract:Terahertz (THz) technology is generally regarded as one of the most
promising candidates to bring about totally new and revolutionary
applications. The aim of my research is twofold: (1) good science in
nanostructures and (2) creation of sensing technologies based on THz
nano-optoelectronics. Here, the nanostructures are semiconductor
quantum dots (QD) and quantum wells (QW) as well as their
combinations. With QDs and QWs, atomic-like quantum processes
between confined levels within the conduction band (intersublevel
and intersubband transition) are studied, THz nanodevices such as
emitters and detectors are investigated. Examples to be discussed
are intersublevel transition in QDs and possible implementation of
THz lasers based on this process, THz quantum well photodetectors,
THz quantum cascade lasers, quantum optic processes, and potentially
unique applications in the THz spectrum.
Biography:H. C. Liu was born in the city of Taiyuan in China. He received his
BSc in physics from Lanzhou University (China) in 1982, and PhD in
applied physics from the University of Pittsburgh (USA) in 1987 as
an Andrew Mellon Predoctoral Fellow. Dr. Liu's major research
interest is semiconductor nanoscience and quantum devices.
Dr. Liu joined the Institute for Microstructural Sciences of the
National Research Council of Canada in 1987. He is currently the
Terahertz & Imaging Devices Group Leader in the Institute. Dr. Liu
has authored or co-authored more than 300 refereed journal articles
(with about 90 as first or sole author), and given more than 108
presentations (67 invited) at international conferences. He was
elected Fellow of the American Physical Society (APS) and Fellow of
the Institute of Electrical and Electronics Engineers (IEEE), has
been granted over a dozen patents, and has been awarded the Herzberg
Medal from the Canadian Association of Physicists in 2000, the
Bessel Prize from the Alexander von Humboldt Foundation in 2001, and
the Chinese Overseas Distinguished Young Scientist Award (NSFC-B) in
2005. He holds chair/adjunct/guest/honorary professorships in 11
institutions in Canada, China, and the USA.
Type: ITEE Seminar
Contact:Aleksandar Rakic and Halina Rubinsztein Dunlop, seminar host (rakic@itee.uq.edu.au)
or Guido Governatori (ITEE seminar co-ordinator)
(guido@itee.uq.edu.au)