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• Nano-Photonics
This program covers the research areas of optoelectronic
and photonic integration, photonic crystals, high Q resonant
cavity, photonic integrated devices and circuits, resonators,
MMI devices, couplers, optical Meta-materials, negative
index of refraction, superlens physics and design, surface
plasmonic
structures
and
devices
nano-crystal
semiconductor optoelectronic materials and devices, etc.
• Photonic Materials and Devices
This program covers the research areas relating to
semiconductor optoelectronic materials, devices and
processing, nano-particles in oxide based materials for light
emitting devices, solar cells and waveguide devices,
quantum dots and quantum cascade semiconductor lasers
for the mid-IR for biomedical and environmental monitoring,
UV ZnO semiconductor laser diodes, MOVPE epitaxy
growths of compound semiconductors and semiconductor
nanostructures and optoelectronic devices, etc.
Laboratory facilities
PhRC has the following laboratories:
Photonics Laboratory I, Photonics Laboratory II, Photonics
Lab III (Nanophotonics), Photonics Training Laboratory, First
Year Laboratory C. An affiliate laboratory is the
Micro-Fabrication Facilities (MFF) for fabrication of
optoelectronic devices, and a joint PhRC-NTRC Laboratory
for optical communication research.
The Centre has various laser systems with laser wavelength
from UV (193 nm Excimer laser) to IR (10.6 micron CO2
laser).
The Centre is also host to one the first Competitive Research
Programs (CRP) awarded by the National Research
Foundation (NRF) to NTU in 2007. This CRP is in the field of
Nano-Photonics and Meta-materials. The PhRC has a host of
semiconductor fabrication and characterization equipment,
including a Metal-Organic Chemical Vapour Deposition
(MOCVD) epitaxy system, an inductive-coupled plasma
etching equipment, a mask aligner with nano-imprint
lithography, and a new electron-beam lithography (EBL)
system acquired in 2008. Most of these equipments are
housed in the new Class-100 MFF facility.
Positioning and Wireless Technology Centre (PWTC)
Director: Associate Professor Guan Yong Liang
Vision
To be a centre of global excellence in Wireless
Communication, Wireless Positioning and Wireless Sensing
technologies.
Mission
To lead and promote Research, Innovation and Training in
Wireless Communication, Identification, Positioning and
Tracking technologies and applications.
Research Activities
Positioning and Wireless Technology Centre (PWTC) is an
inter-school research centre hosted by the School, with
participation from School of Computer Engineering (SCE),
School of Mechanical and Aerospace Engineering (MAE) and
School of Civil and Environmental Engineering (CEE). The
centre director and deputy director are Prof Guan Yong Liang
and Prof Shen Zhongxiang respectively. PWTC has 4 core
research programs, namely
1. Wireless Network
- Advance modulation, coding, and precoding techniques
- WiMax (WMAN), WiFi (WLAN), UWB (WPAN)
- Cooperative relay networks
- Cognitive radio
- Mobile Ad Hoc & MESH routing
- Network coding
2. RF Engineering & RF Identification (RFID)
- UWB biomedical sensing
- UWB RFID (RF Identification)
- Antenna and MMIC
- Wireless channel characterization
3. Indoor and Outdoor Positioning
- UWB Indoor positioning
- Software multi-mode GPS
4.Wireless Networked Robots
- Human robot interaction
- Cognitive capabilities development for humanoid
robots
PWTC has grown from strength to strength in human resource
development and R&D achievement. In 2009/10, its staff
strength includes:
• 22 academic professors from various Schools in
NTU;
• 25 research staff with expertise in UWB, multiple
input multiple output (MIMO) technology, radio
frequency (RF) & microwave technology, wireless
communication and signal processing;
• 30 Ph.D. and 5 M.Eng. students;
• 8 international exchange students from the Tianjin
University, BeiHang University, National University of
Defence Technology and National Taiwan University.
PWTC’s major achievements/activities in 2009/10 include:
14 externally funded projects (Total $9.12 million):
3 defence-funded projects ($3.15million)
• Advanced Communications Research Programme
(DRTech/DSO). PI – Associate Professor Guan Yong Liang
• Blind Identification of Channel Interleaving
Parameters (MINDEF). PI – Associate Professor Li Kwok
Hung
• Blind Identification of Modulation Parameters
(MINDEF). PI – Associate Professor Gong Yi
1 project funded by Ministry of Education ($1.15million)
• Liberating the Radio Spectrum with Cooperative in
Spectrum Sharing. PI – Assistant Professor Ting See Ho
5 projects funded by Temasek Lab (S$1.1million)
• Rate Compatible Punctured Turbo Codes. PI – Associate
Professor Guan Yong Liang
• Dirty-Paper Pre-Coding. PI – Associate Professor Guan
Yong Liang
• Secured Scrambler and Encoder. PI – Associate Professor
Koh Soon Ngee
• BER Performance Enhancement for HF
Waveforms. PI – Associate Professor Teh Kah Chan
• Graphical Iterative Blind Wireless Receiver. PI –
Assistant Professor Ting See Ho
2 projects funded by the Agency for Science, Technology and
Research (A*STAR) (S$1.02million)
• 2-Dimensional Coding and Signal Processing. PI –
Associate Professor Guan Yong Liang
• High Efficiency. High Linearity and High Power Amplifier for
Next Generation Wireless Subscribers Portable Sets. PI –
Prof Law Choi Look