• Liejia Qian
  • Professor
  • Ultrfast Nonlinear Optics & Intense Laser
  • QianLJ19@sjtu.edu.cn

Biographical Information

Liejia Qian was born in 1965. He received the Ph. D. degree in optics from Chinese Academia of Science, China, in 1989, for his work on femtosecond dye lasers. From 1991 to 1993, he was a Post doctor at Politecnico de Milano, Milano, Italy, and was engaged in the research of high-power solid-state laser and its intracavity frequency doubling. In 1993, he joined the Shanghai Institute of Optics and Fine Mechanics, Shanghai, China, as a Senior Researcher. Since 2009, he has been a Professor in the Department of Physics, Shanghai Jiao tong University. He spent the academic years of 1997 to 1999 on leave at the School of Applied Engineering Physics, Cornell University, Ithaca, NY. During the years of 2001-2008, he was a Professor in the Department of Optical Science and Engineering, Fudan University.

 

Research Field

Ultrafast Nonlinear OpticsIntense Laser Science and Technology.

The Qian group with a research interest in development of ultrahigh-power short pulse (PW) is mainly focused on the high-power laser technology and Second-Order Nonlinear Optics. As for fundamental research program, mainly dedicate to ultrafast nonlinear optical research, explore new phenomenon and effect of time-space nonlinear optics, extend new application of nonlinear optics and develop and generate new optical technology and measure method; As for engineering laser technology research program, promote development of high power laser technology and tackle the key difficult technology of laser engineering, under the basis and innovation sources of the scientific research result of ultrafast nonlinear optics.

Recently, our group will put emphasize on the breakthrough in bottleneck problem of high energetics of ultrafast Mid-IR laser, generate the key technology and the general design scheme of ultrafast high peak power tunable Mid-IR laser, develop the integrated system of TW-grade Mid-IR laser, achieve the international leading level of technical performance of high-peak power, high brightness, wide range of tunableness.

 

AchievementSelected publications

1. Ke Wang, L. J. Qian, et al, (2008), “Phase-velocity measurement of a tightly focused Gaussian beam by use of sum-frequency generation,” Appl. Phys. Lett. 92, 121114.

2. X. H. Wei, L. J. Qian, P. Yuan, and H. Y. Zhu, (2008), “Optical parametric amplification pumped by a phase-aberrated beam,” Opt. Expr. 16 (11), 8904-8915 (2008).

3. D. F. Zhang, L. J. Qian, et al, (2008), “Fiber-array-based detection scheme for single-shot pulse contrast characterization,” Opt. Lett. 33 (17), 1969-1971.