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Journal of Biomedical Optics

Polarized multiplex coherent anti-Stokes Raman scattering using a picosecond laser and a fiber supercontinuum
Author(s): Sebastien Michel; Hervé Rigneault; Antoine Courjaud; Eric Mottay; Christophe Finot; John M. Dudley
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Paper Abstract

We perform multiplex coherent anti-Stokes Raman scattering (CARS) micro-spectroscopy with a picosecond pulsed laser and a broadband supercontinuum (SC) generated in photonic crystal fiber. CARS signal stability is achieved using an active fiber coupler that avoids thermal and mechanical drifts. We obtain multiplex CARS spectra for test liquids in the 600-2000 cm−1 spectral range. In addition we investigate the polarization dependence of the CARS spectra when rotating the pump beam linear polarization state relative to the linearly polarized broad stokes SC. From these polarization measurements we deduce the Raman depolarization ratio, the resonant versus nonresonant contribution, the Raman resonance frequency, and the linewidth.

Paper Details

Date Published: 1 February 2011
PDF: 4 pages
J. Biomed. Opt. 16(2) 021108 doi: 10.1117/1.3534783
Published in: Journal of Biomedical Optics Volume 16, Issue 2
Show Author Affiliations
Sebastien Michel, Institut Fresnel (France)
Hervé Rigneault, Institut Fresnel (France)
Antoine Courjaud, Amplitude Systemes (France)
Eric Mottay, Amplitude Systemes (France)
Christophe Finot, Univ. de Bourgogne (France)
John M. Dudley, Univ. de Franche-Comté (France)

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