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Volume 4, Issue 4 (Suppl) J Laser Opt Photonics, an open access journal
ISSN: 2469-410X Optics 2017
November 15-17, 2017
November 15-17, 2017 | Las Vegas, USA
8th International Conference and Exhibition on
Lasers, Optics & Photonics
Integrated terahertz photonics and optoelectronics
Qi Jie Wang and Guozhen Liang
Nanyang Technological University, Singapore
C urrently, terahertz (THz) optical systems are based on bulky free-space optics. This is due to the lack of a common platform onto
which different THz components, e.g., source, waveguide, modulator and detector can be monolithically integrated. With the
development of THz quantum cascade laser (QCL), it has been realized that the QCL chip may be such a platform for integrated THz
photonics. Here, we report our recent works where the THz QCL is integrated with passive or optoelectronic components. They are:
1) integrated graphene modulator with THz QCL achieving 100% modulation depth and fast speed; 2) phase-locked THz QCL with
integrated plasmonic waveguide and subwavelength antennas realizing dynamically widely tunable polarizations.
Biography
Qi Jie Wang received his PhD degree in Electrical and Electronic Engineering from Nanyang Technological University, Singapore in 2005. After completing his PhD, he
joined the School of Engineering and Applied Science, Harvard University, as a Post-doctoral Researcher. In October 2009, he was assigned as a Joint Nanyang Assistant
Professor at the School of Electrical and Electronic Engineering (EEE) and the School of Physical and Mathematical Sciences (SPMS). Since Feb 2015, he has been
promoted to tenured Associate Professor in School of EEE and SPMS, NTU.
Qi Jie Wang et al., J Laser Opt Photonics 2017, 4:4 (Suppl)
DOI: 10.4172/2469-410X-C1-017