Spectral phase shaping for high resolution CARS spectroscopy around 3000 cm-1


Rhijn, A.C.W. van and Postma, S. and Korterik, J.P. and Herek, J.L. and Offerhaus, H.L. (2009) Spectral phase shaping for high resolution CARS spectroscopy around 3000 cm-1. In: Multiphoton Microscopy in the Biomedical Sciences IX. Proceedings of SPIE, 7183 . SPIE, 71830X. ISBN 9780819474292

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Abstract: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 of vibrational lines using an unamplified oscillator. Furthermore we demonstrate chemically selective broadband CARS microscopy on a mixed sample of 4 μm diameter polystyrene (PS) and poly(methyl methacrylate) (PMMA) beads. The CARS signal from either the PS or the PMMA beads is shown to be enhanced or suppressed, depending on the phase profile applied to the broadband spectrum. Using a combination of negative and positive (sloped) π-phase steps in the pump and probe spectrum the purely non-resonant background signal is removed
Item Type:Book Section
Copyright:© 2009 COPYRIGHT SPIE--The International Society for Optical Engineering
Science and Technology (TNW)
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Link to this item:http://purl.utwente.nl/publications/77975
Official URL:https://doi.org/10.1117/12.808792
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