Steady-State and Transient Ultraviolet Resonance Raman Spectrometer for the 193–270 nm Spectral Region

• DOI: 10.1366/000370205775142511
• Publication Date: 2005-12-18T00:58:20Z
• Authors: Sergei Bykov; Igor Lednev; Anatoli Ianoul; Aleksandr Mikhonin; Calum Munro; Sanford A. Asher
• Keywords: Ultraviolet; Transient (computer programming); Resonance Raman spectroscopy

We describe a state-of-the-art tunable ultraviolet (UV) Raman spectrometer for the 193-270 nm spectral region. This instrument allows steady-state and transient UV measurements. utilize 5 kHz Ti-sapphire continuously laser (approximately 20 ns pulse width) between 193 240 For measurements we one Coherent Infinity YAG to generate nanosecond infrared (IR) pump pulses temperature jump (T-jump) second that is frequency tripled shifted into deep (204 nm) excitation. Numerous other excitation frequencies can be utilized selective of chromophoric groups constructed subtractive dispersion double monochromator minimize stray light. new charge-coupled device (CCD) camera responds efficiently light, as opposed previous CCD photodiode detectors, which required intensifiers detecting T-jump use simultaneously acquire spectra water stretching bands (2500-4000 cm(-1)) whose band-shape report sample temperature.