Detecting lateral interfaces with focus‐engineered coherent anti‐Stokes Raman scattering microscopy | Zendy

Krishnamachari Vishnu Vardhan | Zendy; Potma Eric Olaf | Zendy

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Detecting lateral interfaces with focus‐engineered coherent anti‐Stokes Raman scattering microscopy

Author(s) -

Krishnamachari Vishnu Vardhan,

Potma Eric Olaf

Publication year - 2008

Publication title -

journal of raman spectroscopy

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.748

H-Index - 110

eISSN - 1097-4555

pISSN - 0377-0486

DOI - 10.1002/jrs.1887

Subject(s) - raman scattering , raman spectroscopy , microscopy , laser , optics , focus (optics) , coherent anti stokes raman spectroscopy , materials science , beam (structure) , scattering , laser beams , nanotechnology , chemistry , physics

Focus‐engineered coherent anti‐Stokes Raman scattering (FE‐CARS) microscopy is used to highlight the lateral interfaces between chemically distinct media. Interface highlighting is achieved by using a HG10 mode for the Stokes laser beam and a HG00 mode for the pump laser beam in the forward detection scheme. The spectral and the orientation dependence of FE‐CARS are found to be in agreement with theoretical predictions. A brief discussion on the relevance of this technique for imaging third‐order nonlinear susceptibility interfaces in thin samples of biological or chemical importance is presented. Copyright © 2008 John Wiley & Sons, Ltd.

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