Coherent mode-selective Raman excitation towards standoff detection

被引：84

作者：

Li, Haowen ^{[2
]}

Harris, D. Ahmasi ^{[1
]}

Xu, Bingwei ^{[1
]}

Wrzesinski, Paul J. ^{[1
]}

Lozovoy, Vadim V. ^{[1
]}

Dantus, Marcos ^{[1
]}

机构：

[1] Michigan State Univ, Dept Chem, E Lansing, MI 48824 USA

[2] Bio Photon Solut Inc, Okemos, MI 48864 USA

来源：

OPTICS EXPRESS | 2008年 / 16卷 / 08期

关键词：

D O I：

10.1364/OE.16.005499

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We report the detection of characteristic Raman lines for several chemicals using a single-beam coherent anti-Stokes Raman scattering (CARS) technique from a 12 meter standoff distance. Single laser shot spectra are obtained with sufficient signal to noise ratio to allow molecular identification. Background and spectroscopic discrimination are achieved through binary phase pulse shaping for optimal excitation of a single vibrational mode. These results provide a promising approach to standoff detection of chemicals, hazardous contaminants, and explosives. (C) 2008 Optical Society of America.

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收藏

页码：5499 / 5504

页数：6

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