46 citations · 54 across the 4 of their papers we have counts for
5 papers
Metal surface structuring with spatiotemporally focused femtosecond laser pulses
Yuanxin Tan, Wei Chu, Jintian Lin +3
Femtosecond laser micromachining provides high precision and less thermal diffusion in surface structuring as a result of the ultrashort temporal duration and ultrahigh peak intens…
Fabrication of polarization-independent single-mode waveguides in lithium niobate crystal with femtosecond laser pulses
Jia Qi, Peng Wang, Yang Liao +5
We report on fabrication of depressed cladding optical waveguides buried in lithium niobate crystal with shaped femtosecond laser pulses. Depressed cladding waveguides of variable…
Spatiotemporal focusing does not always improve axial intensity localization
Ya Cheng, Hongqiang Xie, Zhaohui Wang +6
We report on an experimental comparison on critical intensities of nonlinear self-focusing in air with conventional focusing and spatiotemporal focusing schemes. Our results show t…
Backward air lasing actions induced by femtosecond laser filamentation: influence of population inversion lifetime
Hongqiang Xie, Guihua Li, Wei chu +5
We experimentally investigate generation of backward 357 nm N2 laser in a gas mixture of N2/Ar using 800-nm femtosecond laser pulses, and examine the involved gain dynamics based o…
Absorption and emission of single attosecond light pulses in an autoionizing gaseous medium dressed by a time-delayed control field
Wei-Chun Chu, C. D. Lin
An extreme ultraviolet (EUV) single attosecond pulse passing through a laser-dressed dense gas is studied theoretically. The weak EUV pulse pumps the helium gas from the ground sta…