| Asst Prof Wang Qijie
Nanyang Assistant Professor (NTU)
Division of Microelectronics
School of Electrical & Electronic Engineering
College of Engineering
Email: QJWANG@ntu.edu.sg
Phone: (+65)6790 5431
Office: S1-B1b-52 |
| Education |
- PhD (ElectEng) Nanyang Technological University 2005
- BEng (Hons) Univ of Science & Technology of China 2001
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| Biography |
Dr. WANG Qijie received the B.E. degree in electrical engineering from the University of Science and Technology of China (USTC), Hefei China, in 2001 graduating one year in advance; and the Ph.D degree in electrical and electronic engineering from Nanyang Technological University, Singapore, in 2005, with NTU and Singapore Millennium Foundation (SMF) scholarship. After completing his Ph.D, he obtained the 2005 SMF postdoctoral fellowship working in NTU. Then he joined School of Engineering and Applied Science, Harvard University, in Prof. Federico Capasso’s group as a postdoctoral researcher in Jan. 2007. During his postdoctoral studies at Harvard University, he has made significant contributions in achieving high-performance both mid-infrared and Terahertz quantum cascade semiconductor lasers. In October 2009, he was assigned as a joint Nanyang Assistant Professor at the School of Electrical and Electronic Engineering (Microelectronics Division) and the School of Physical and Mathematical Sciences (Physics and Applied Physics Division).
Dr. Wang has published/co-published about 50 papers (including 5 invited papers) in top international journals (like Nature Photonics and Nature Materials), more than 40 conference papers (including many invited talks) and co-authored 5 U.S. patents. He was the recipient of the top prize for the Young Inventor Awards of the SPIE Photonics Europe Innovation Village in 2004; a golden award from the Fifth Young Inventor’s Awards in 2005 organized by HP and Wall Street Journal; and the co-recipient of the IES (Institution of Engineers Singapore) Prestigious Engineering Achievement Team Award 2005 of Singapore. |
| Research Interests |
My current research interests are to explore theoretically and experimentally nano-structured semiconductor and fiber-based materials, and nanophotonic devices (nanoplasmonics, photonic crystals and metamaterials) with an emphasis on all aspects of the problem: from design, fabrication, characterization, to integration at system level.
In particular, I am going to investigate the fundamental properties (optical and electrical) of semiconductor (quantum cascade lasers) and high power fiber lasers, and nanophotonic devices (such as graphene optoelectronic devices) in the infrared frequency regimes (inclulding near-IR (~1.5um), mid-IR (~3-30 um) and Terahertz (~60-300 um)) to improve their performance. Exploration of their broad potential applications is also one of the key focuses.
We are always looking for strongly motivated both postdoc and Ph.D researchers dedicated to the cutting edge research in semiconductor and fiber lasers, nanotechnology, plasmonics and metamaterials, and nano-optics/photonics. Interested candidates please send your CV to qjwang@ntu.edu.sg. Shortlisted candidates will be contacted.
Currently we have several postdoc positions available on the development of high performance semiconductor and fiber lasers. |
| Research Grant |
- A*SERC Innovations in Remanufacturing Programme (2011-2014) [by A*STAR Science & Engineering Research Council (SERC)]
- A*SERC Innovations in Remanufacturing Programme (2013-2015) [by A*STAR Science & Engineering Research Council (SERC)]
- A*STAR Science and Engineering Research Council (2012-2014) [by A*STAR Science & Engineering Research Council (SERC)]
- A*STAR Science and Engineering Research Council (2012-2015) [by A*STAR Science & Engineering Research Council (SERC)]
- A*STAR Science and Engineering Research Council - Polish Ministry of Science and Higher Education (MSHE) (2012-2015) [by A*STAR Science & Engineering Research Council (SERC)]
- Academic Research Fund Tier 2 (2012-2015) [by Ministry of Education (MOE)]
- Academic Research Fund Tier 3 (2012-)
- Defence Research and Technology Office (DRTech) (2010-2013) [by Defence Research and Technology Office (DRTech)]
- NTU Internal Funding - Start Up Grant - Nanyang Assistant Professorship (2009-2013) [by Nanyang Technological University]
- Start Up Grant (2009-)
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| Current Projects |
- A Novel Photonic Crystal Surface Emitting Laser Incorporating a High-Index-Contrast Grating
- Disruptive Photonic Technologies (DPT)
- Integration of III-V Lasers and Optical Amplifiers with Silicon Photonics
- Intersubband Electroluminescence From III-Nitride Multiple Quantum Wells
- Mid-Infrared Supercontinuum Generation in InF3 and Lead-Bismuth-gallium Fibers
- Multi-functional High Power Fiber Laser System and Applications for Cleaning and Surface Enhancement
- Multi-functional Higher Power Fiber Laser System and Applications for Cleaning and Surface Enhancement (Industry Project)
- The Development of Quantum Cascade Lasers
- The Development of Quantum Cascade Lasers.
- Towards Arbitrary Beam Engineering with Integrated Plasmonics and Deformed Microcavities
| Selected Publications | - Yongzhe Zhang, Tao Liu, Bo Meng, Guozhen Liang, Xiaonan Hu, and Qi Jie Wang. (2013). Broadband high photoresponse from pure monolayer graphene photodetector. Nature Communications, 4, 1811-1822.
- H. Zhu, S. F. Yu, Q. J. Wang, and C. X. Shan. (2013). Directional single-mode emission from coupled whispering gallery resonators realized by using ZnS microbelts. Optics Letters, 38(9), 1527-1529.
- G. Liang, H. Liang, Y. Zhang, S. P. Khanna, L. Li, A. G. Davies, E. Linfield, D. F. Lim, C. S. Tan, S. F. Yu, H. C. Liu, and Q. J. Wang. (2013). Single-mode surface-emitting concentric-circular-grating terahertz quantum cascade lasers. Applied Physics Letters, 102, 031119.
- B. Hu, Q. J. Wang, and Y. Zhang. (2012). Systematic study of the focal shift effect in planar plasmonic slit lenses. Nanotechnology, 23, 444002.
- Tao Liu, Kenneth E. Lee, and Qi Jie Wang. (2012). Microscopic density matrix model for optical gain of terahertz quantum cascade lasers: Many-body, nonparabolicity, and resonant tunneling effects. Physical Review B, 86, 235306.
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