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Proceedings Paper

Filament-based stimulated Raman spectroscopy
Author(s): J. H. Odhner; D. A. Romanov; R. J. Levis
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Paper Abstract

A new multiplexed stimulated Raman spectroscopic technique encompassing a single-shot spectral measurement range of over 3900 cm-1 is presented. Impulsive excitation of all Raman active vibrational modes present in a medium is achieved by self-compression of a laser pulse undergoing filamentation in air, creating coherent vibrational wave-packets. These wave-packets create a macroscopic polarization of the medium that imparts sidebands on a delayed narrowband probe pulse. The background-free measurement of impulsively excited Raman modes in gas-phase N2, O2, H2, CO2, toluene, ammonia, and chloroform with a spectral resolution of 25 cm-1 is presented.

Paper Details

Date Published: 17 February 2010
PDF: 9 pages
Proc. SPIE 7582, Nonlinear Frequency Generation and Conversion: Materials, Devices, and Applications IX, 75820M (17 February 2010); doi: 10.1117/12.842129
Show Author Affiliations
J. H. Odhner, Temple Univ. (United States)
D. A. Romanov, Temple Univ. (United States)
R. J. Levis, Temple Univ. (United States)


Published in SPIE Proceedings Vol. 7582:
Nonlinear Frequency Generation and Conversion: Materials, Devices, and Applications IX
Peter E. Powers, Editor(s)

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