NIST logo

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

NIST Authors in Bold

Author(s): Young J. Lee; Marcus T. Cicerone;
Title: Vibrational Dephasing Time Imaging by Time-Resolved Broadband Coherent Anti-Stokes Raman Scattering Microscopy
Published: January 28, 2008
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
Pages: pp. 041108-1 - 041108-3
Keywords: CARS Microscopy; Vibrational Dephasing;
Research Areas: Biomaterials
PDF version: PDF Document Click here to retrieve PDF version of paper (474KB)