Qiaoqiang Gan

Qiaoqiang GanQiaoqiang Gan is a Doctoral Student in Electrical Engineering and an Innovator in Nanoplasmonics

Qiaoqiang Gan is a graduate student in Dr. Fil Bartoli's group, and a student member of the Center for Optical Technologies. His current research interests include nanophotonics, plasmonics, and biophotonics. During the past three years, he spent much of his time seeking to control the movement of lightwaves through the use of surface plasmons on nanopatterned metal films. Surface plasmons are collective charge density oscillations induced by an electric field, and can enhance and confine the electric field within nanoscale dimensions from the metal surface. He has explored the potential of surface plasmons for slowing or stopping light, long a goal of the scientific community. Most approaches reported previously can only slow light over a narrow range of light wavelengths. In his research, he has made a major contribution in this area by developing a graded metal grating structure capable of slowing or stopping light waves over a very broad wavelength range, opening the door to the control of light waves on a chip.  

Qiaoqiang has published articles in international technical journals such as Physics Review Letter, Applied Physics Letters, Optics Express, Optics Letters, and the IEEE Journal of Special Topics in Quantum Electronics, and his work has been featured in such publications as Nature Photonics, Scientific American, and The New Scientist. He has presented his research in invited seminars at the University of Toronto's Department of Chemistry in 2007, the Physics Department of Wuhan University in China in 2008, and at SPIE Photonics West in 2009. Qiaoqiang holds a number of patents, and has also served as an active reviewer for journals, including the IEEE Journal of Quantum Electronics, the IEEE Journal of Photonics Technology Letters, the IEEE Journal of Lightwave Technology, Nano Letters and Optics Letters.

He earned a B.S. in materials science and engineering in 2003 from Fudan University in Shanghai, one of the top science and engineering schools in China, where he was awarded the Preeminent Individual Prize for innovation in science and technology. From Fudan, he went to Beijing, where he earned a master's of engineering degree in 2006 from the Chinese Academy of Sciences' Institute of Semiconductors.

On June 7, 2009, the Chinese government recognized Qiaoqiang's research achievements at Lehigh University when China's Ministry of Education presented him with the 2008 Chinese Government Award for Outstanding Self-Financed Students Abroad. More recently, he was selected as one of the 12 winners of IEEE Photonic Society Student Fellowship and will go to Turkey to receive this prestigious award at the IEEE Photonic Society Annual meeting.

In Qiaoqiang's most recent article, which was coauthored by Professors Bartoli and Ding (also of Lehigh's ECE Department) and published by Physical Review Letters, he reported that the graded grating structure can be scaled to dimensions compatible with light waves in both the terahertz and telecommunications portions of the spectrum. While currently exploring applications of this work, he is also investigating novel nanoplasmonic structures to probe biological cells and biomolecules, for applications in biosensing and biomedicine. To find out more about Qiaoqiang's work, or the Bartoli lab in general, please click here.

Dr. Bartoli's research is funded through a grant from the National Science Foundation (NSF).