title: Observation of Raman optical activity by heterodyne-detected polarization-resolved coherent anti-Stokes Raman scattering.
abstract: We report the first observation of Raman optical activity (ROA) by coherent anti-Stokes Raman scattering. Thanks to the more freedom of polarization configurations in coherent anti-Stokes Raman scattering than in spontaneous Raman spectroscopy, the contrast ratio of the chiral signal to the achiral background has been improved markedly. For (-)-β-pinene, it is 2 orders of magnitude better than that in the reported spontaneous ROA measurement. This is also the first measurement of ROA signal using a pulsed laser source.
authors.affiliation: Department of Chemistry, School of Science, The University of Tokyo, Bunkyo-ku, Tokyo, Japan.
authors.forename: Kotaro
authors.initials: K
authors.lastname: Hiramatsu
authors.forename: Masanari
authors.initials: M
authors.lastname: Okuno
authors.forename: Hideaki
authors.initials: H
authors.lastname: Kano
authors.forename: Philippe
authors.initials: P
authors.lastname: Leproux
authors.forename: Vincent
authors.initials: V
authors.lastname: Couderc
authors.forename: Hiro-o
authors.initials: HO
authors.lastname: Hamaguchi