ARC Nanotechnology Network

Distinguished Lecturer Dr H C Liu

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. Liuís 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.

During his tour, he presented his talk on Terahertz Nano-Optoelectronics.


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.

A video recoding on DVD of the seminar given at the Research School of Physical Sciences and Engineering, ANU Canberra is now available.

If you would like a complimentary copy of the DVD, please email your name and postal address

Tour Details:

ADELAIDE on Wednesday 28th November 2007
Location:University of Adelaide
Time: 3:10pm
Contact: Prof Derek Abbott Email

For more information, including directions, click here

BRISBANE on Friday 30th November 2007
Location: University of Queensland
GP South Building 78-420
Time: 11:00am
Contact: Dr Aleksandar Rakic (Email) and Prof Halina Rubinsztein Dunlop (Email)

CANBERRA on Monday 3rd December 2007
Location: Australian National University
Research School of Physical Sciences and Engineering Seminar Room
Time: 3:30pm
Contact: Ilonka Krolikowska (Email)

SYDNEY on Tuesday 4th December 2007
Location: University of New South Wales
School of Physics Common Room, Room 64, Old Main Building
Time: 4:00pm
Contact Dr Adam Micolich Tel: (02) 9385 6132