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The design of a femtosecond stimulated Raman spectrograph (FSRS) optimized for measurements in the near UV is presented. It features a 387.5 nm Raman pump pulse causing a (pre-)resonance enhancement for molecular absorbing in the UV. As many photoreactive molecules absorb there, the set-up is particularly suited to study photochemical reactions. The 387.5 nm pulses are generated by frequency adding...
An improved Kerr-based set-up for time-resolved emission spectroscopy in the femtosecond regime is presented. The Kerr gate is switched by femtosecond NIR pulses of ∼1100 nm. Thereby, practically no background emission of the Kerr medium is observed for wavelengths smaller than 1000 nm. This allows for the simultaneous acquisition of emission spectra in the spectral range from 350 nm to 1000 nm. By...
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