Journal
APPLIED SPECTROSCOPY
Volume 64, Issue 12, Pages 1311-1319Publisher
SAGE PUBLICATIONS INC
DOI: 10.1366/000370210793561673
Keywords
Two-dimensional infrared spectroscopy; 2DIR; Raman spectroscopy; Time resolved spectroscopy; Femtosecond stimulated Raman spectroscopy; Spectrometer; Instrumentation
Categories
Funding
- BBSRC [ST/501784]
- STFC [ST/501784]
- Royal Society Wolfson Merit Award
- STFC
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We report the development of a high sensitivity time-resolved infrared and Raman spectrometer with exceptional experimental flexibility based on a 10-kHz synchronized dual-arm femtosecond and picosecond laser system Ultrafast high average-power titanium sapphire lasers and optical parametric amplifiers provide wavelength tuning from the ultraviolet (UV) to the mid-infrared region Customized silicon, indium gallium arsenide, and mercury cadmium telluride linear array detectors are provided to monitor the probe laser intensity in the UV to mid-infrared wavelength range capable of measuring changes in sample absorbance of Delta OD similar to 10(-5) in 1 second The system performance is demonstrated for the time resolved infrared, two-dimensional (2D) infrared, and femtosecond stimulated Raman spectroscopy techniques with organometallic intermediates, organic excited states, and the dynamics of the tertiary structure of DNA
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