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

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タイトル別名
  • Applications of polarization S-branch CARS. Studies of thermometry and nonresonant susceptibility measurement.
  • ヘンコウ S ブランチ CARS ノ オウヨウ オンド ソクテイ ト ヒ キョ

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説明

Applications of polarization S-branch CARS to thermometry and the nonresonant susceptibility(χNR) measurement are reported. The pressure and temperature dependence of background-free S-branch CARS spectra of N2 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 χNR of N2 has been demonstrated using S-branch suppressed spectra. The measured value of χNR is 8.7±0.20.1×1O--18 [(cm3/erg)/amagat].

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