Standoff Detection via Single-Beam Spectral Notch Filtered Pulses

Details Standoff Detection via Single-Beam Spectral Notch Filtered Pulses Standoff Detection via Single-Beam Spectral Notch Filtered Pulses

2011-11-19

arxiv.org/abs/1111.4583v2

Appl. Phys. Lett. 100, 051111 (2012)

Physics

Optics

3 pages, 3 figures

Scientific paper

10.1063/1.3681365

We demonstrate single-beam coherent anti-Stokes Raman spectroscopy (CARS), for detecting and identifying traces of solids, including minute amounts of explosives, from a standoff distance (>50 m) using intense femtosecond pulses. Until now, single-beam CARS methods relied on pulse-shapers in order to obtain vibrational spectra. Here we present a simple and easy-to-implement detection scheme, using a commercially available notch filter, that does not require the use of a pulse-shaper.

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