Tuesday, February 26, 2019
Future high-energy physics and light source applications including laser-plasma accelerator (LPA) require high repetition rate ultrafast lasers at kHz and beyond, since high rep-rate enables precision accelerator control through adaptive feedback, and opens up new applications such as ultrafast electron diffraction and medical treatment. Two ongoing laser technology projects towards high rep-rate LPA at Lawrence Berkeley National Laboratory are presented. One is high-energy, high-power, ultrafast fiber laser based on coherent pulse stacking and diffractive beam combination. The other project is few-cycle pulse generation via nonlinear compression of ultrafast Ti:sapphire laser.
Tong Zhou received the B.S. and M.S. degrees in electrical engineering from Peking University, China, in 2007 and 2010, respectively, and the Ph.D. degree in optics and photonics, electrical engineering, from the University of Michigan, Ann Arbor, in 2015. He was a research fellow at the University of Michigan in 2015, and afterwards a laser R&D engineer at Thorlabs, Inc. Since 2017, he has been a physicist postdoctoral fellow at Lawrence Berkeley National Laboratory. His research interests include ultrafast laser, fiber laser, chirped-pulse amplification, laser combination, optical pulse stacking, supercontinuum generation, and few-cycle pulse generation.