書誌事項
- タイトル別名
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- Sensitivity Enhancement of Atmospheric-Gas Analysis with Lead-Salt Diode Laser through Spectral Data Processing
説明
A very high sensitivity was obtained for only a 1.4 m optical path. A tunable Pb Sn Te diode laser of 7.6μm band was employed. Etalon fringes, which are dominant optical noises, were suppressed with using off-axis parabolic mirrors as beam-collimating elements along with a wedged window. Methane spectrum of a magnitude of 5×10-5 in absolute absorption were measured though being subject to random noise and base-line distortion both greater than the methane spectrum. A spectral data processing based on the notion of the adjoint spectrum successfully deduced densities of atmospheric methane every 10 seconds over one hour. Anrms fluctuation of the results was 0.1 ppm for about an 1 ppm average value.
収録刊行物
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- レーザー研究
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レーザー研究 12 (2), 96-100, 1984
一般社団法人 レーザー学会
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詳細情報 詳細情報について
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- CRID
- 1390001204649334144
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- NII論文ID
- 130003700739
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- ISSN
- 13496603
- 03870200
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- データソース種別
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- JaLC
- Crossref
- CiNii Articles
- OpenAIRE
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- 抄録ライセンスフラグ
- 使用不可
