Abstract
Coherent anti-Stokes Raman scattering (CARS) spectra of in the hybrid femtosecond/picosecond regime have been recorded with resolution. The -branch rovibrational structure has been resolved, making it suitable for gas-phase simultaneous rotational and vibrational thermometry applications. Resolving this spectral structure requires synchronization of a narrowband picosecond probe pulse with a broadband femtosecond pair of pump and Stokes pulses. It is achieved using a single femtosecond ytterbium-laser source and a volume Bragg grating in a compact experimental arrangement.
© 2016 Optical Society of America
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