Two-Photon Infrared Resonance Can Enhance Coherent Raman Scattering. | Academic Article individual record
abstract

In this Letter 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 nonresonant four-wave mixing background, preferential excitation of the anti-Stokes field, and simplified phase matching conditions. In particular, this is demonstrated in gaseous methane along the _{1} (A_{1}) and _{3} (T_{2}) vibrational levels using an infrared field tuned between 1400 and 1600cm^{-1} and a 532-nm pump field. This approach has broad applications, from coherent light generation to spectroscopic remote sensing and chemically specific imaging in microscopy.

publication outlet

Phys Rev Lett

author list (cited authors)
Traverso, A. J., Hokr, B., Yi, Z., Yuan, L., Yamaguchi, S., Scully, M. O., & Yakovlev, V. V.
publication date
2018
altmetric score

0.5

citation count

20

PubMed ID
29481233
identifier
339404SE
Digital Object Identifier (DOI)
start page
063602
volume
120
issue
6