Journal
REVIEW OF SCIENTIFIC INSTRUMENTS
Volume 87, Issue 4, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.4945259
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Funding
- KAKENHI from MEXT/JSPS [25104005, 25248009]
- RIKEN Special Postdoctoral Researchers (SPDR) program
- Grants-in-Aid for Scientific Research [16H04102, 25104005, 25248009] Funding Source: KAKEN
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We describe details of the setup for time-resolved impulsive stimulated Raman spectroscopy (TR-ISRS). In this method, snapshot molecular vibrational spectra of the photoreaction transients are captured via time-domain Raman probing using ultrashort pulses. Our instrument features transform-limited sub-7-fs pulses to impulsively excite and probe coherent nuclear wavepacket motions, allowing us to observe vibrational fingerprints of transient species from the terahertz to 3000-cm(-1) region with high sensitivity. Key optical components for the best spectroscopic performance are discussed. The TR-ISRS measurements for the excited states of diphenylacetylene in cyclohexane are demonstrated, highlighting the capability of our setup to track femto-second dynamics of all the Raman-active fundamental molecular vibrations. (C) 2016 AIP Publishing LLC.
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