Standoff detection of trace amounts of solids by nonlinear Raman spectroscopy using shaped femtosecond pulses

被引：90

作者：

Katz, O. ^{[1
]}

Natan, A. ^{[1
]}

Silberberg, Y. ^{[1
]}

Rosenwaks, S. ^{[2
]}

机构：

[1] Weizmann Inst Sci, Dept Phys Complex Syst, IL-76100 Rehovot, Israel

[2] Ben Gurion Univ Negev, Dept Phys, IL-84105 Beer Sheva, Israel

来源：

APPLIED PHYSICS LETTERS | 2008年 / 92卷 / 17期

关键词：

D O I：

10.1063/1.2918014

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We demonstrate a single-beam, standoff (>10 m) detection and identification of various materials including minute amounts of explosives under ambient light conditions. This is obtained by multiplex coherent anti-Stokes Raman scattering spectroscopy (CARS) using a single femtosecond phase-shaped laser pulse. We exploit the strong nonresonant background for amplification of the backscattered resonant CARS signals by employing a homodyne detection scheme. The simple and highly sensitive spectroscopic technique has a potential for hazardous materials standoff detection applications. (C) 2008 American Institute of Physics.

引用

页数：3

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