Triple-pump coherent anti-Stokes Raman scattering system

Details Triple-pump coherent anti-Stokes Raman scattering system Triple-pump coherent anti-Stokes Raman scattering system

2006-09-12

2006-09-12

Lee, Hwa (Andrew) (Department: 2877)

Optics: measuring and testing

By dispersed light spectroscopy

With raman type light scattering

Reexamination Certificate

active

07106436

ABSTRACT:
A triple-pump coherent anti-Stokes Raman scattering (CARS) system for simultaneous measurements of temperature and species concentrations with high spatial and temporal resolution is described, wherein four laser beams generate CARS signals near two distinct wavelengths exhibiting an N2CARS signal along with the CARS signal from another target molecule, each pair of CARS signals generated over a relatively narrow wavelength region and captured with fixed-wavelength detection. Temperature and relative concentrations of the target species with respect to N2are extracted by fitting the measured CARS spectrum in each wavelength region.

REFERENCES:
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patent: 2003/0007145 (2003-01-01), Shimada
Hancock et al., “Dual-pump coherent anti-Stokes Raman scattering measurements of nitrogen and oxygen in a laminar jet diffusion of flame”, Applied Optics, vol. 36, No. 15, pp. 3217-3226.

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