2014•Unpublished venueRequires access

Filament-driven Lasing Action for Combustion Diagnosis

Huailiang Xu, Wei Chu, Helong Li, Jielei Ni, Bin Zeng, Jinping Yao, Haisu Zhang, Guihua Li, Chengrui Jing, Hongqiang Xie, Kaoru Yamanouchi, Ya Cheng

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Abstract

We report on the lasing action for the combustion intermediate of CN in an ethanol/air flame by femtosecond laser excitation. It is confirmed that the lasing action results from amplified spontaneous emission with the population inversion achieved in the femtosecond-laser-induced plasma filament.

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Key concepts: Lasing threshold, Femtosecond, Population inversion, Materials science, Laser, Combustion, Excitation, Gain-switching