Phase measurement of coherent Raman vibrational spectroscopy with chirped spectral holography.
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.
Wilson
Jesse W
JW
Electrical and Computer Engineering Department, Colorado State University, Fort Collins, CO 80523, USA.
Schlup
Philip
P
Bartels
Randy
R