Image formation in CARS and SRS: effect of an inhomogeneous nonresonant background medium | Zendy

Konstantin I. Popov | Zendy; Adrian F. Pegoraro | Zendy; Albert Stolow | Zendy; Lora Ramunno | Zendy

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Image formation in CARS and SRS: effect of an inhomogeneous nonresonant background medium

Author(s) -

Konstantin I. Popov,

Adrian F. Pegoraro,

Albert Stolow,

Lora Ramunno

Publication year - 2012

Publication title -

optics letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.524

H-Index - 272

eISSN - 1071-2763

pISSN - 0146-9592

DOI - 10.1364/ol.37.000473

Subject(s) - raman scattering , optics , physics , scattering , amplitude , raman spectroscopy , forward scatter , spatial frequency , coherent anti stokes raman spectroscopy

We investigate the role of a spatially inhomogenous nonresonant background medium on several Raman-based imaging modalities. In particular, we consider a small resonant bead submerged in a spatially heterogeneous nonresonant χ(3) background. Using detailed 3D electrodynamic simulations, we compare coherent anti-Stokes Raman scattering (CARS), frequency-modulated CARS, amplitude-modulated stimulated Raman scattering (SRS), and frequency-modulated SRS. We find that only FM-SRS is background-free.

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