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Model for Simulating Interaction Volumes for Coherent Anti‐Stokes Raman Scattering
Author(s) -
Kaabar W.,
Devonshire R.
Publication year - 1997
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/(sici)1097-4555(199705)28:5<339::aid-jrs102>3.0.co;2-e
Subject(s) - raman scattering , optics , signal (programming language) , range (aeronautics) , physics , laser , scattering , raman spectroscopy , field (mathematics) , phase (matter) , computational physics , computer science , quantum mechanics , aerospace engineering , engineering , mathematics , pure mathematics , programming language
Abstract A novel computational approach for modelling coherent anti‐Stokes Raman scattering (CARS) interaction volumes is presented. The model combines the treatment of the CARS signal generation volume given by Teets ( Appl Opt . 25, 855 (1986)) with the realistic electric field distributions produced by the model of focused laser beams given by Evans and Grey‐Morgan ( Phys . Med . Biol . 14, 205 (1969)). The new model provides a detailed picture of local contributions to the total CARS signal as well as the CARS spectrum. A particular feature of the model is that it uses readily accessible parameters of the incident beams and the focusing optics. Numerical calculations of CARS signal strength and spatial resolution for a wide range of experimental conditions for the commonly used phase‐matching geometries, namely, collinear CARS, USED CARS and folded BOXCARS are reported. © 1997 by John Wiley & Sons, Ltd.