title: Transverse chemical interface detection with coherent anti-Stokes Raman scattering microscopy.
abstract: Transverse "chemical" interfaces are revealed with a conventional two beam narrowband coherent anti-Stokes Raman scattering microscopy setup in a collinear configuration. The exciting "pump" and "Stokes" beams are focused on the sample in two opposite directions. The subtraction of the two generated anti-Stokes signals gives rise to a signal that is directly proportional to the pure Raman spectrum of the resonant medium. This property is used to highlight an interface between glass and N,N-dimethylformamide (DMF) and recover the pure Raman spectrum of DMF around its 1408 cm(-1) vibrational band.
authors: Aix-Marseille Université, Domaine Universitaire Saint-Jéro^me, Institut Fresnel, Mosaic group, CNRS UMR 6133, École Centrale de Marseille, 13397 Marseille cedex 20, France.
authors: Sophie
authors: S
authors: Brustlein
authors: David
authors: D
authors: Gachet
authors: Franck
authors: F
authors: Billard
authors: Hervé
authors: H
authors: Rigneault
mesh_terms: D003198:Computer Simulation; D004126:Dimethylformamide; D005559:Formamides / Q000737:chemistry; D008853:Microscopy / Q000379:methods*; D012815:Signal Processing, Computer-Assisted; D013059:Spectrum Analysis, Raman / Q000379:methods*
chemical_list: D005559:Formamides; D004126:Dimethylformamide