Femtosecond laser-induced nonlinear spectroscopy for remote sensing of methane

被引：14
|
作者：
Xu, HL [1 ]
Daigle, JF
Luo, Q
Chin, SL
机构：
[1] Univ Laval, COPL, Ste Foy, PQ G1K 7P4, Canada
[2] Univ Laval, Dept Phys Genie Phys & Opt, Ste Foy, PQ G1K 7P4, Canada
来源：
APPLIED PHYSICS B-LASERS AND OPTICS | 2006年 / 82卷 / 04期
关键词：
D O I：
10.1007/s00340-005-2123-8
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Femtosecond laser-induced nonlinear molecular spectroscopy is applied for sensing atmospheric greenhouse gas methane (CH4). The high intensity inside the Ti-sapphire femtosecond laser filaments can dissociate the CH4 molecules into small fragments which emit characteristic fluorescence. Backward CH radical fluorescence is used to quantitatively analyze the pollutant concentration and its remote detection limit.
引用
收藏
页码：655 / 658
页数：4
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