2 papers
physics.optics2016
Harmonic-seeded resonant Raman amplification in strong-field ionized nitrogen molecules
Jinping Yao, Wei Chu, Chuanshan Tian +3
Generation of free-space laser-like emissions of high spatiotemporal coherence and narrow bandwidth in atmosphere opens promising opportunities for remote spectroscopic sensing. He…
physics.optics2015
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…