Application of spectral phase shaping to high resolution CARS spectroscopy

By spectral phase shaping of both the pump and probe pulses in coherent anti-Stokes Raman scattering (CARS) spectroscopy we demonstrate the extraction of the frequencies, bandwidths and relative cross sections of vibrational lines. We employ a tunable broadband Ti:Sapphire laser synchronized to a ps...

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Bibliographic Details
Published in:Optics express 2008-05, Vol.16 (11), p.7985-7996
Main Authors: Postma, S, van Rhijn, A C W, Korterik, J P, Gross, P, Herek, J L, Offerhaus, H L
Format: Article
Language:English
Subjects:
Computer Simulation
Computer-Aided Design
Equipment Design
Equipment Failure Analysis
Lasers
Models, Theoretical
Optics and Photonics - instrumentation
Refractometry - instrumentation
Spectrum Analysis, Raman - instrumentation
Spectrum Analysis, Raman - methods
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Summary:By spectral phase shaping of both the pump and probe pulses in coherent anti-Stokes Raman scattering (CARS) spectroscopy we demonstrate the extraction of the frequencies, bandwidths and relative cross sections of vibrational lines. We employ a tunable broadband Ti:Sapphire laser synchronized to a ps-Nd:YVO mode locked laser. A high resolution spectral phase shaper allows for spectroscopy with a precision better than 1 cm(-1) in the high frequency region around 3000 cm(-1). We also demonstrate how new spectral phase shaping strategies can amplify the resonant features of isolated vibrations to such an extent that spectroscopy and microscopy can be done at high resolution, on the integrated spectral response without the need for a spectrograph.
ISSN:1094-4087
1094-4087
DOI:10.1364/oe.16.007985