Observation of Raman optical activity by heterodyne-detected polarization-resolved coherent anti-Stokes Raman scattering.
نویسندگان
چکیده
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.
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ورودعنوان ژورنال:
- Physical review letters
دوره 109 8 شماره
صفحات -
تاریخ انتشار 2012