Backward nitrogen lasing actions induced by femtosecond laser filamentation: influence of duration of gain

Backward nitrogen lasing actions induced by femtosecond laser filamentation: influence of duration of gain

We experimentally investigate generation of backward 357 nm N _2 laser in a gas mixture of N _2 /Ar using 800 nm femtosecond laser pulses, and examine the involved gain dynamics based on pump-probe measurements. Our findings show that a minimum duration of gain in the excited N _2 molecules is requi...

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Bibliographic Details
Main Authors: Hongqiang Xie, Guihua Li, Wei Chu, Bin Zeng, Jinping Yao, Chenrui Jing, Ziting Li, Ya Cheng
Format: Article
Language:English
Published: IOP Publishing 2015-01-01
Series:New Journal of Physics
Subjects:
remote air laser
femtosecond laser
filamentation
Online Access:https://doi.org/10.1088/1367-2630/17/7/073009

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