Coherent anti-Stokes Raman scattering in a Fabry-Perot cavity: A theoretical study
Résumé
We present a study of coherent anti-Stokes Raman scattering (CARS) under focused beam excitation in a planar Fabry-Perot cavity using an image-dipole formalism. We give a comprehensive description of forward- and backward-CARS signal generation by introducing the expressions of the nonlinear induced polarization in the cavity as a function of their counterpart in free space. We show that the cavity gives rise to a backward-CARS signal and allows working with low numerical aperture collection objectives. We finally discuss the influence of the scatterer position in the cavity on the detected signal.