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High Temperature Absorption Spectrum of 4.3 Micron CO2† 4.3微米CO2†的高温吸收光谱
Topical Meeting on Spectroscopy in Support of Atmospheric Measurements Pub Date : 1900-01-01 DOI: 10.1364/sam.1980.wp11
M. Esplin, H. Sakai
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引用次数: 0
Quenching of Fluorescence of Small Molecules 小分子荧光的猝灭
Topical Meeting on Spectroscopy in Support of Atmospheric Measurements Pub Date : 1900-01-01 DOI: 10.1364/sam.1980.tub3
T. Mcilrath
{"title":"Quenching of Fluorescence of Small Molecules","authors":"T. Mcilrath","doi":"10.1364/sam.1980.tub3","DOIUrl":"https://doi.org/10.1364/sam.1980.tub3","url":null,"abstract":"The technique of fluorescence lidar involves detection of resonance fluorescence, and interpreting the intensity of the fluorescence signal in terms of the number of molecules being excited. A quantitative interpretation of the signal necessarily requires knowledge of the fluorescence quantum yield of the excited molecules at the ambient pressure. At stratospheric or tropospheric pressures the fluorescent yield is inversely proportional to the quenching rate for most species so that an accurate determination of species concentrations is dependent on a similarly accurate determination of the quenching rates. This is in contrast to Raman lidar where the re-emission is prompt and quenching does not play a significant role.","PeriodicalId":199214,"journal":{"name":"Topical Meeting on Spectroscopy in Support of Atmospheric Measurements","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131340935","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Cutoff-Free Theory of Impact Broadening and Shifting of Microwave and Infrared Molecular Spectra 微波和红外分子光谱冲击展宽和位移的无截止理论
Topical Meeting on Spectroscopy in Support of Atmospheric Measurements Pub Date : 1900-01-01 DOI: 10.1364/sam.1980.wp5
R. Leavitt, D. Korff
{"title":"Cutoff-Free Theory of Impact Broadening and Shifting of Microwave and Infrared Molecular Spectra","authors":"R. Leavitt, D. Korff","doi":"10.1364/sam.1980.wp5","DOIUrl":"https://doi.org/10.1364/sam.1980.wp5","url":null,"abstract":"The semiclassical Anderson-Tsao-Curnutte (ATC) impact theory [1,2] of pressure broadening in molecular spectra has been successful in calculations of linewidths and shifts in the microwave and infrared regimes. However, the theory suffers from a fundamental defect in that, for small impact parameter, b, the interruption function, S(b), attains unphysically large values. In an attempt to circumvent this difficulty, Murphy and Boggs [3] developed an alternative method that used an exponential expansion of the collision matrix elements; this expansion led to finite values of the matrix elements for all impact parameters. Cattani [4] grafted the Murphy-Boggs expansion onto the ATC theory; a similar result was later derived by Salesky and Korff [5]. These latter three approaches neglect the important reorientation terms that were shown by Gordon [6] to be significant.","PeriodicalId":199214,"journal":{"name":"Topical Meeting on Spectroscopy in Support of Atmospheric Measurements","volume":"279 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123183049","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Introductory Remarks 引言
Topical Meeting on Spectroscopy in Support of Atmospheric Measurements Pub Date : 1900-01-01 DOI: 10.1364/sam.1980.ma1
R. Toth
{"title":"Introductory Remarks","authors":"R. Toth","doi":"10.1364/sam.1980.ma1","DOIUrl":"https://doi.org/10.1364/sam.1980.ma1","url":null,"abstract":"Summary not available.","PeriodicalId":199214,"journal":{"name":"Topical Meeting on Spectroscopy in Support of Atmospheric Measurements","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125748687","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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