M. Araki, K. Tsukiyama, T. Oyama, Mayu Negishi, Haruka Sato
{"title":"DETECTION OF NON-EMISSION VIBRONIC BANDS OF THIOPHENOXY RADICAL BY ABSORPTION SPECTROSCOPY","authors":"M. Araki, K. Tsukiyama, T. Oyama, Mayu Negishi, Haruka Sato","doi":"10.15278/ISMS.2019.FA01","DOIUrl":"https://doi.org/10.15278/ISMS.2019.FA01","url":null,"abstract":"","PeriodicalId":20752,"journal":{"name":"Proceedings of the 74th International Symposium on Molecular Spectroscopy","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83079998","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}
K. Cossel, G. Ycas, F. Giorgetta, E. Baumann, J. Friedlein, D. Herman, E. Waxman, I. Coddington, N. Newbury
Open-path measurements of atmospheric gas species over km-scale path lengths are well suited to quantify emissions from sources like oil and gas, forest fires, and industry. is a relatively new technique that combines high-resolution and broad spectral coverage with no instrument lineshape and near perfect frequency calibration. These features have enabled open-path DCS to provide accurate measurements of multiple trace gas species simultaneously in the near-infrared across path lengths ranging from 100 m to several km. However, in order to reach the sensitivity necessary to detect many atmospheric trace constituents, including volatile organic compounds (VOCs), operation in the mid-infrared (or UV/Vis) is required.
Here, we show a mid-infrared open-path dual comb spectrometer operating in the 3-4 and 4.5-5 μm spectral regions. We have used this spectrometer to measure methane, ethane, and propane (arising primarily from oil and gas activity) across a 1-km-long path in Boulder, CO for 1 week with an ethane sensitivity of ∼0.1 ppb for a 2-minute time resolution. In addition, we show quantitative measurements of intentionally released acetone and isopropanol with a 1-σ sensitivity of 5.7 ppm·m and 2.4 ppm·m, respectively. In the 4.5-5 μm region, we have used this system to detect N2O, CO, and O3. Finally, we have developed a second-generation instrument in the 3-4 μm region that is more compact and has improved stability. This system was recently deployed in a van at an active oil and gas drilling operation. We present preliminary measurements of methane, ethane, and higher hydrocarbons from this deployment as well as initial efforts at emissions quantification.
{"title":"Measurement of VOCs using open-path mid-infrared dual comb spectroscopy","authors":"K. Cossel, G. Ycas, F. Giorgetta, E. Baumann, J. Friedlein, D. Herman, E. Waxman, I. Coddington, N. Newbury","doi":"10.15278/ISMS.2019.FB02","DOIUrl":"https://doi.org/10.15278/ISMS.2019.FB02","url":null,"abstract":"\u0000 <p>Open-path measurements of atmospheric gas species over km-scale path lengths are well suited to quantify emissions from sources like oil and gas, forest fires, and industry. is a relatively new technique that combines high-resolution and broad spectral coverage with no instrument lineshape and near perfect frequency calibration. These features have enabled open-path DCS to provide accurate measurements of multiple trace gas species simultaneously in the near-infrared across path lengths ranging from 100 m to several km. However, in order to reach the sensitivity necessary to detect many atmospheric trace constituents, including volatile organic compounds (VOCs), operation in the mid-infrared (or UV/Vis) is required.</p><p>Here, we show a mid-infrared open-path dual comb spectrometer operating in the 3-4 and 4.5-5 μm spectral regions. We have used this spectrometer to measure methane, ethane, and propane (arising primarily from oil and gas activity) across a 1-km-long path in Boulder, CO for 1 week with an ethane sensitivity of ∼0.1 ppb for a 2-minute time resolution. In addition, we show quantitative measurements of intentionally released acetone and isopropanol with a 1-σ sensitivity of 5.7 ppm·m and 2.4 ppm·m, respectively. In the 4.5-5 μm region, we have used this system to detect N<sub>2</sub>O, CO, and O<sub>3</sub>. Finally, we have developed a second-generation instrument in the 3-4 μm region that is more compact and has improved stability. This system was recently deployed in a van at an active oil and gas drilling operation. We present preliminary measurements of methane, ethane, and higher hydrocarbons from this deployment as well as initial efforts at emissions quantification.</p>\u0000","PeriodicalId":20752,"journal":{"name":"Proceedings of the 74th International Symposium on Molecular Spectroscopy","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89853568","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}
{"title":"INFRARED SPECTROSCOPY OF [(H2S)2(X)1]+ (X = WATER, METHANOL, AND ETHANOL): INFLUENCE OF THE MICROSOLVATION ON THE HEMIBOND","authors":"A. Fujii, Dandan Wang, Keigo Hattori","doi":"10.15278/ISMS.2019.FC07","DOIUrl":"https://doi.org/10.15278/ISMS.2019.FC07","url":null,"abstract":"","PeriodicalId":20752,"journal":{"name":"Proceedings of the 74th International Symposium on Molecular Spectroscopy","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79763002","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}
M. Smith, F. Thibault, S. Ivanov, V. Devi, N. Islam, A. Predoi‐Cross
{"title":"TEMPERATURE-DEPENDENCE OF SELF- AND AIR-BROADENED CO LINE SHAPES IN THE FUNDAMENTAL BAND","authors":"M. Smith, F. Thibault, S. Ivanov, V. Devi, N. Islam, A. Predoi‐Cross","doi":"10.15278/ISMS.2019.FE08","DOIUrl":"https://doi.org/10.15278/ISMS.2019.FE08","url":null,"abstract":"","PeriodicalId":20752,"journal":{"name":"Proceedings of the 74th International Symposium on Molecular Spectroscopy","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77561290","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}
Marissa A Dobulis, C. Jarrold, K. Patros, M. Thompson
{"title":"ELECTRONIC STRUCTURE OF OH�ISOPRENE ADDUCTS FROM ANION PHOTOELECTRON IMAGING SPECTROSCOPY","authors":"Marissa A Dobulis, C. Jarrold, K. Patros, M. Thompson","doi":"10.15278/ISMS.2019.FD07","DOIUrl":"https://doi.org/10.15278/ISMS.2019.FD07","url":null,"abstract":"","PeriodicalId":20752,"journal":{"name":"Proceedings of the 74th International Symposium on Molecular Spectroscopy","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82207223","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}
{"title":"ANALYSIS OF PSEUDO-JAHN-TELLER EFFECT IN METAL ALKOXIDES","authors":"Ketan Sharma, Jinjun Liu, Anam C Paul, T. Miller","doi":"10.15278/isms.2019.ff06","DOIUrl":"https://doi.org/10.15278/isms.2019.ff06","url":null,"abstract":"","PeriodicalId":20752,"journal":{"name":"Proceedings of the 74th International Symposium on Molecular Spectroscopy","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78164780","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}
{"title":"FTMW SPECTROSCOPY OF THE METHYL-VINYL CRIEGEE INTERMEDIATE","authors":"Y. Endo, Yuan‐Pern Lee, Chen-An Chung","doi":"10.15278/ISMS.2019.RJ06","DOIUrl":"https://doi.org/10.15278/ISMS.2019.RJ06","url":null,"abstract":"","PeriodicalId":20752,"journal":{"name":"Proceedings of the 74th International Symposium on Molecular Spectroscopy","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72761367","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}
{"title":"CONSTRAINING THE FORMATION OF FUNDAMENTAL INTERSTELLAR MOLECULES USING ISOTOPOLOGUES","authors":"O. Wilkins, G. Blake, Brandon Carroll","doi":"10.15278/ISMS.2019.RG05","DOIUrl":"https://doi.org/10.15278/ISMS.2019.RG05","url":null,"abstract":"","PeriodicalId":20752,"journal":{"name":"Proceedings of the 74th International Symposium on Molecular Spectroscopy","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75370213","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}
R. Reiff, A. Jaroń-Becker, A. Becker, T. Joyce, J. Venzke
{"title":"MACROSCOPIC SIMULATION OF NEAR-THRESHOLD HIGH HARMONIC GENERATION USING MICROSCOPIC TDSE/TDDFT CALCULATIONS","authors":"R. Reiff, A. Jaroń-Becker, A. Becker, T. Joyce, J. Venzke","doi":"10.15278/ISMS.2019.RK02","DOIUrl":"https://doi.org/10.15278/ISMS.2019.RK02","url":null,"abstract":"","PeriodicalId":20752,"journal":{"name":"Proceedings of the 74th International Symposium on Molecular Spectroscopy","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84264063","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}
{"title":"MOLECULAR SPECTROSCOPY AT THE JET PROPULSION LABORATORY","authors":"B. Drouin","doi":"10.15278/ISMS.2019.RA02","DOIUrl":"https://doi.org/10.15278/ISMS.2019.RA02","url":null,"abstract":"","PeriodicalId":20752,"journal":{"name":"Proceedings of the 74th International Symposium on Molecular Spectroscopy","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89016277","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}
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