Abstract
We introduce a nonscanning, time-domain sensitive phase measurement of Raman-active vibrations. Coherent vibrations are set up by impulsive stimulated Raman scattering and probed by spectral interferometry using a time-delayed pair of probe and reference pulses. The probe–reference pair is chirped, and the instantaneous frequency sweep maps spectral phase encoded in the pulses to the time-domain vibrational motion, allowing measurements to be made without a time-consuming pump–probe delay scan.
© 2008 Optical Society of America
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