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Vibrational Dephasing Time Imaging by Time-Resolved Broadband Coherent Anti-Stokes Raman Scattering Microscopy

Published

Author(s)

Young Jong Lee, Marcus T. Cicerone

Abstract

Time delay control in broadband coherent anti-Stokes Raman scattering (CARS) allows acquisition of time-resolved CARS images free of non-resonant background (NRB). We demonstrate that, in some cases, CARS image contrast is not chemical contrast, but simply due to differences in NRB. Time-resolved CARS is used to rectify this by eliminating the NRB. We also construct a vibrational dephasing time image from a sequence of time-resolved CARS images of polystyrene beads in toluene. In doing so, we demonstrate the potential of imaging local molecular interactions between molecules and their surrounding in a structured medium.
Citation
Applied Physics Letters
Volume
92
Issue
4

Keywords

CARS Microscopy, Vibrational Dephasing

Citation

Lee, Y. and Cicerone, M. (2008), Vibrational Dephasing Time Imaging by Time-Resolved Broadband Coherent Anti-Stokes Raman Scattering Microscopy, Applied Physics Letters, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=854026 (Accessed June 13, 2024)

Issues

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Created January 27, 2008, Updated October 12, 2021