Applied Physics B

, Volume 81, Issue 7, pp 875–879

High-contrast chemical imaging with gated heterodyne coherent anti-Stokes Raman scattering microscopy

  • M. Greve
  • B. Bodermann
  • H.R. Telle
  • P. Baum
  • E. Riedle
Rapid communication

DOI: 10.1007/s00340-005-1979-y

Cite this article as:
Greve, M., Bodermann, B., Telle, H. et al. Appl. Phys. B (2005) 81: 875. doi:10.1007/s00340-005-1979-y

Abstract

A novel method is presented which substantially improves the signal-to-background ratio for coherent anti-Stokes Raman scattering (CARS) microscopy. It exploits the fixed phase relation between pump, Stokes and CARS fields together with the strong phase coherence in supercontinua generated by femtosecond lasers. Three phase-locked optical parametric amplifiers are used for the realisation of heterodyne signal detection. Proper pulse timing yields a gating mechanism which nearly completely suppresses solvent background signals.

Copyright information

© Springer-Verlag 2005

Authors and Affiliations

  • M. Greve
    • 1
  • B. Bodermann
    • 1
  • H.R. Telle
    • 1
  • P. Baum
    • 2
  • E. Riedle
    • 2
  1. 1.Physikalisch-Technische BundesanstaltBraunschweigGermany
  2. 2.Lehrstuhl für BioMolekulare OptikLudwig-Maximilians-Universität MünchenMünchenGermany

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