偏光SブランチCARSの応用 : 温度測定と非共鳴感受率測定に関する検討

概要

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Applications of polarization S-branch CARS to thermometry and the nonresonant susceptibility(χ_<NR>) measurement are reported. The pressure and temperature dependence of background-free S-branch CARS spectra of N_2 is investigated in the temperature range of 300-700K and at pressures of 0.1-2.0MPa. The individual S-branch lines are clearly resolved in the whole range, and the temperature can be determined by the intensity ratio of S-branch lines. Collisional narrowing for S-branch CARS is theoretically discussed and it is proved that the S-branch CARS thermometry is the collisional narrowing free meadurement. The measurement of χ_<NR> of N_2 has been demonstrated using S-branch suppressed spectra. The measured value of χ_<NR> is 8.7±^<0.2>_<0.1>×1O-^<-18> [(cm^3/erg)/amagat].
社団法人日本機械学会の論文
1990-01-25