Remote detection and identification of biological aerosols using a femtosecond terawatt lidar system

被引：0
|
作者：
G. Méjean
J. Kasparian
J. Yu
S. Frey
E. Salmon
J.-P. Wolf
机构：
[1] Université Claude Bernard Lyon 1 ,Teramobile Project, LASIM, UMR CNRS 5579
来源：
Applied Physics B | 2004年 / 78卷
关键词：
Laser Pulse; Excitation Wavelength; Lidar; Size Measurement; Pulse Shaping;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
We demonstrate experimentally the first range-resolved detection and identification of biological aerosols in the air by non-linear lidar. Ultra-short terawatt laser pulses are used to induce two-photon-excited fluorescence (2PEF) in riboflavin-containing particles at a remote location. We show that, in the case of amino acid detection, 2PEF-lidar should be more efficient than linear 1PEF-lidar beyond a typical distance of 2 km, because it takes advantage of the higher atmospheric transmission at the excitation wavelengths. 2PEF-lidar moreover allows size measurement by pump–probe schemes, and pulse shaping may improve the detection selectivity.
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页码：535 / 537
页数：2
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