All-ultraviolet time-resolved coherent anti-Stokes Raman scattering.
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We report all-UV coherent anti-Stokes Raman scattering (CARS) in calcite with 250-280 nm pump, Stokes, probe, and anti-Stokes light. UV CARS efficiency is approximately 7x higher than for comparable scattering in the visible, 480-540 nm. Time-resolved UV CARS reveals lengthening of the dephasing time of 1086 cm(-1) CO3(2-) internal vibrations from 4 to 7 ps with increasing vibrational excitation, consistent with a phonon depletion model.
author list (cited authors)
Mehendale, M., Giordmaine, J. A., Gatzogiannis, E., Dogariu, A., Warren, W. S., Beadie, G., & Scully, M. O.