Journal
APPLIED OPTICS
Volume 50, Issue 4, Pages A38-A48Publisher
OPTICAL SOC AMER
DOI: 10.1364/AO.50.000A38
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Funding
- Air Force Research Laboratory [FA8650-09-C-2001, FA8650-10-C-2008]
- U.S. Air Force Office of Scientific Research (USAFOSR)
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We report the development and application of a simple theoretical model for extracting temperatures from picosecond-laser-based coherent anti-Stokes Raman scattering (CARS) spectra of H-2 obtained using time-delayed probe pulses. This approach addresses the challenges associated with the effects of rotational-level-dependent decay lifetimes on time-delayed probing for CARS thermometry. A simple procedure is presented for accurate temperature determination based on a Boltzmann distribution using delayed-probe-pulse vibrational CARS spectra of H-2; this procedure requires measurement at only a select handful of probe-pulse delays and requires no assumptions about sample environment. (C) 2010 Optical Society of America
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