Femtosecond spectral phase shaping for CARS spectroscopy and imaging

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Abstract

Coherent Anti-Stokes Raman Scattering (CARS) is a third-order non-linear optical process that provides label-free, chemically selective microscopy by probing the internal vibrational structure of molecules. Due to the resonant enhancement of the CARS process, faster imaging is possible compared to Raman microscopy. CARS is unaffected by background fluorescence, but the inherent non-resonant background signal can overwhelm the resonant signal. We demonstrate how simple phase shapes on the pump (and probe) beam reduce the background signal and enhance the resonant signal. We demonstrate chemically selective microscopy using these shaped pulses on plastic beads.
Original languageUndefined
Title of host publicationUltrafast Phenomena XVI
EditorsP. Corkum, S. de Silvestri, K.A. Nelson, E. Riedle, R.W. Schoenlein
PublisherSpringer
Pages523-525
ISBN (Print)9783540959458
DOIs
Publication statusPublished - 2009
EventUltrafast Phenomena XVI, 16th International Conference - Palazzo dei Congressi Stresa, Italy
Duration: 9 Jun 200813 Jun 2008

Publication series

NameSpringer series in chemical physics
PublisherSpringer
Volume92

Conference

ConferenceUltrafast Phenomena XVI, 16th International Conference
Period9/06/0813/06/08
OtherJune 9--13, 2008

Keywords

  • IR-72660

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