Effects of laser field statistics on coherent anti-Stokes Raman spectroscopy intensities
Journal Article
·
· Opt. Lett.; (United States)
The effects of intensity fluctuations in the frequency-doubled output of a multimode Nd:YAG pump laser on coherent anti-Stokes Raman spectroscopy (CARS) signal generation have been investigated in a crossed-beam, two-color CARS experiment. Measurements of signal intensity as a function of time delay in one pump beam show a maximum at zero delay. In measurements on a single unresolved transition, the nonresonant signal is enhanced by almost a factor of 2 more than the resonant signal. Our results demonstrate the non-Gaussian nature of the laser field statistics and introduce new considerations into the analysis of experimental CARS spectra. 7 references, 3 figures, 1 table.
- Research Organization:
- Sandia National Labs., Livermore, CA
- OSTI ID:
- 6265701
- Journal Information:
- Opt. Lett.; (United States), Journal Name: Opt. Lett.; (United States) Vol. 9:6; ISSN OPLED
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
440103* -- Radiation Instrumentation-- Nuclear Spectroscopic Instrumentation
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
CHEMICAL REACTIONS
COMBUSTION
FLUCTUATIONS
LASER SPECTROSCOPY
LASERS
NEODYMIUM LASERS
OXIDATION
PERFORMANCE
RAMAN SPECTROSCOPY
SIGNALS
SOLID STATE LASERS
SPECTROSCOPY
THERMOCHEMICAL PROCESSES
VARIATIONS
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
CHEMICAL REACTIONS
COMBUSTION
FLUCTUATIONS
LASER SPECTROSCOPY
LASERS
NEODYMIUM LASERS
OXIDATION
PERFORMANCE
RAMAN SPECTROSCOPY
SIGNALS
SOLID STATE LASERS
SPECTROSCOPY
THERMOCHEMICAL PROCESSES
VARIATIONS