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Two-Photon Infrared Resonance Can Enhance Coherent Raman Scattering
Physical Review Letters
In this work we present a new technique for attaining efficient low-background coherent Raman scattering where the Raman coherence is mediated by a tunable infrared laser in two-photon resonance with a chosen vibrational transition. In addition to the traditional benefits of conventional coherent Raman schemes, this approach offers a number of advantages including potentially higher emission intensity, reduction of non-resonant fourwave mixing (FWM) background, preferential excitation of thedoi:10.1103/physrevlett.120.063602 pmid:29481233 fatcat:6qnnkd3v5rhobbzyd3q5iprxc4