6533b854fe1ef96bd12afba1

RESEARCH PRODUCT

Determination of Temperature by Stimulated Raman Scattering of Molecular Nitrogen, Oxygen, and Carbon-Dioxide

G. MillotB. LavorelG. FanjouxC. Wenger

subject

SPECTROSCOPYCO2 GASNU-1/2-NU-2 FERMI DYADSPECTRARELAXATIONROTATIONALQ-BRANCHBAND SHAPESN-2ENERGY-TRANSFER RATESLAWS

description

0721-7269; We have determined the temperature from SRS spectra of N2-N2, N2-CO2, O2-O2, and CO2-CO2 recorded in wide pressure and temperature ranges. The fitting procedure takes simultaneously into account the Dicke effect and motional narrowing. We have quantified the accuracy of the MEG and ECS-P models for rotational relaxation. The temperature extracted from each model is compared with thermocouple measurements. The influence of vibrational broadening and shifting is discussed in detail.

https://hal.archives-ouvertes.fr/hal-00399380