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.
Original language | English |
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Article number | 083901 |
Journal | Physical review letters |
Volume | 109 |
Issue number | 8 |
DOIs | |
Publication status | Published - Aug 24 2012 |
Externally published | Yes |
All Science Journal Classification (ASJC) codes
- Physics and Astronomy(all)