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Coherent anti-Stokes Raman microspectroscopy using spectral focusing with glass dispersion

Rocha-Mendoza, Israel, Langbein, Wolfgang Werner and Borri, Paola 2008. Coherent anti-Stokes Raman microspectroscopy using spectral focusing with glass dispersion. Applied Physics Letters 93 (20) , 201103. 10.1063/1.3028346

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Abstract

We demonstrate experimentally that coherent anti-Stokes Raman microspectroscopy with high spectral resolution is achieved using femtosecond laser pulses chirped up to a few picoseconds by glass elements of known group-velocity dispersion without significant intensity losses. By simply choosing the length of the glass, the chirp of Stokes and pump pulses is tailored to obtain a spectral resolution given by the Fourier limit of the chirped pulse duration. We show that for chirped pulse durations shorter than or comparable to the Raman coherence time, maximum signal occurs for a pump arriving after the Stokes pulse, a time-ordering effect confirmed by numerical simulations.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Biosciences
Physics and Astronomy
Subjects: Q Science > Q Science (General)
Q Science > QC Physics
Publisher: American Institute of Physics
ISSN: 0003-6951
Last Modified: 06 May 2019 20:59
URI: http://orca.cf.ac.uk/id/eprint/22330

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