Abstract
Nonplanar, crossed-beam phase matching has been employed to obtain pure rotational coherent anti-Stokes Raman spectroscopy (CARS) [and coherent Stokes Raman spectroscopy (CSRS)] spectra to within a few wavenumbers of the incident pump frequency. Using this approach, the rotational CARS (and CSRS) radiation is spatially separated from the pump and Stokes beams; therefore small Raman shifts can be observed with a single monochromator.
© 1980 Optical Society of America
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