Femtosecond filamentation induced fluorescence technique for atmospheric sensing*
Authors:
- Shuai YuanSYShuai Yuan
- See Leang ChinSCSee Leang Chin
- He-Ping ZengHZHe-Ping Zeng
- 1 January 2015
- journal article
- Published by IOP Publishing in Chinese Physics B
- Vol. 24 (1)
Abstract
Recent progress in filament-induced atmospheric sensing is reviewed. Self-guided propagation of ultrashort laser pulses in air induces laser filamentation. All molecules in the path of a filament can be dissociated into highly excited fragments, resulting in emission of characteristic fluorescence spectra. The fluorescence spectra provide information about the various molecules in the filaments. By using a filament-induced “fingerprinting” fluorescence technique, molecules in the atmosphere can be identified.Keywords
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