Pub Date : 2019-06-25DOI: 10.1364/HISE.2019.HTH1B.3
K. Chan, Zhuoru Wang, K. Heue
We present long term observations of atmospheric nitrogen dioxide (NO2) and formaldehyde (HCHO) in Nanjing using a Multi-AXis Differential Optical Absorption Spectroscopy (MAX-DOAS) instrument. Ground based MAX-DOAS measurements were performed from April 2013 to February 2017. The MAX-DOAS measurements of NO2 and HCHO vertical column densities (VCDs) are used to validate OMI satellite observations over Nanjing. We developed a new technique to assemble the source contribution map using backward trajectory analysis. The age weighted backward propagation approach is applied to the MAX-DOAS measurements of NO2 and HCHO to reconstruct the spatial distribution of NO2 and HCHO over the Yangtze River Delta during summer and winter time. The reconstructed NO2 fields show a distinct agreement with OMI satellite observations. However, due to the short atmospheric lifetime of HCHO, the backward propagated HCHO data does not show a strong spatial correlation with the OMI HCHO observations. The result shows the MAX-DOAS measurements are sensitive to the air pollution transportation in the Yangtze River Delta, indicating the air quality in Nanjing is significantly influenced by regional transportation of air pollutants. Our results provide a better understanding of the transportation and sources of pollutants in over the Yangtze River Delta as well as the effect of emission control measures during large international event, which are important for the future design of air pollution control policies.
{"title":"Hyperspectral ground based and satellite measurements of tropospheric NO2 and HCHO over Eastern China","authors":"K. Chan, Zhuoru Wang, K. Heue","doi":"10.1364/HISE.2019.HTH1B.3","DOIUrl":"https://doi.org/10.1364/HISE.2019.HTH1B.3","url":null,"abstract":"We present long term observations of atmospheric nitrogen dioxide (NO2) and formaldehyde (HCHO) in Nanjing using a Multi-AXis Differential Optical Absorption Spectroscopy (MAX-DOAS) instrument. Ground based MAX-DOAS measurements were performed from April 2013 to February 2017. The MAX-DOAS measurements of NO2 and HCHO vertical column densities (VCDs) are used to validate OMI satellite observations over Nanjing. We developed a new technique to assemble the source contribution map using backward trajectory analysis. The age weighted backward propagation approach is applied to the MAX-DOAS measurements of NO2 and HCHO to reconstruct the spatial distribution of NO2 and HCHO over the Yangtze River Delta during summer and winter time. The reconstructed NO2 fields show a distinct agreement with OMI satellite observations. However, due to the short atmospheric lifetime of HCHO, the backward propagated HCHO data does not show a strong spatial correlation with the OMI HCHO observations. The result shows the MAX-DOAS measurements are sensitive to the air pollution transportation in the Yangtze River Delta, indicating the air quality in Nanjing is significantly influenced by regional transportation of air pollutants. Our results provide a better understanding of the transportation and sources of pollutants in over the Yangtze River Delta as well as the effect of emission control measures during large international event, which are important for the future design of air pollution control policies.","PeriodicalId":174423,"journal":{"name":"Optical Sensors and Sensing Congress (ES, FTS, HISE, Sensors)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130833067","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}
Pub Date : 2019-06-25DOI: 10.1364/SENSORS.2019.STH4A.2
D. Tosi, C. Molardi, W. Blanc, C. Marques, S. Sales
Distributed sensing, based on Rayleigh scattering or arrays of reflectors, can be extended as a multi-fiber, multi-sensor technique by using multiplexing features. Current research has overcome the time-and wavelength-division multiplexing, that has represented the golden standard for fiber Bragg gratings. In this work, we introduce novel domain that allow “parallel” multiplexing applied to distributed sensors, and are routed in the use of specialty fibers. The use of fibers doped with MgO-doped nanoparticles, as well as polymethyl methacrylate fibers, enables new domains for multiplexing, that are discussed in this work. Scattering-level, polarization, and sensitivity based multiplexing are discussed and applied to strain, temperature, and refractive index measurements.
{"title":"Multiplexing techniques and applications in fiber-optic spatially resolved sensing networks","authors":"D. Tosi, C. Molardi, W. Blanc, C. Marques, S. Sales","doi":"10.1364/SENSORS.2019.STH4A.2","DOIUrl":"https://doi.org/10.1364/SENSORS.2019.STH4A.2","url":null,"abstract":"Distributed sensing, based on Rayleigh scattering or arrays of reflectors, can be extended as a multi-fiber, multi-sensor technique by using multiplexing features. Current research has overcome the time-and wavelength-division multiplexing, that has represented the golden standard for fiber Bragg gratings. In this work, we introduce novel domain that allow “parallel” multiplexing applied to distributed sensors, and are routed in the use of specialty fibers. The use of fibers doped with MgO-doped nanoparticles, as well as polymethyl methacrylate fibers, enables new domains for multiplexing, that are discussed in this work. Scattering-level, polarization, and sensitivity based multiplexing are discussed and applied to strain, temperature, and refractive index measurements.","PeriodicalId":174423,"journal":{"name":"Optical Sensors and Sensing Congress (ES, FTS, HISE, Sensors)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128458464","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}
Pub Date : 2019-06-25DOI: 10.1364/SENSORS.2019.SW5D.6
J. Rho
Plasmonic chiral metamaterials has attracted significant attention at it provides a new route to intriguing optical properties such as negative refractive index, light polarization filters, and phase modulation.
{"title":"Artificial Chirality Evloution in Micro-/Nano-scale 3D Plasmonic Metamaterials","authors":"J. Rho","doi":"10.1364/SENSORS.2019.SW5D.6","DOIUrl":"https://doi.org/10.1364/SENSORS.2019.SW5D.6","url":null,"abstract":"Plasmonic chiral metamaterials has attracted significant attention at it provides a new route to intriguing optical properties such as negative refractive index, light polarization filters, and phase modulation.","PeriodicalId":174423,"journal":{"name":"Optical Sensors and Sensing Congress (ES, FTS, HISE, Sensors)","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125686949","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}
Pub Date : 2019-06-25DOI: 10.1364/FTS.2019.JTH2A.26
D. Mojena, C. Lopez-Serrano, N. López-Ruiz, J. Jorcano, P. Acedo
An optical sensor based on porphyrin is used to monitor oxygen concentration in 2D cell cultures. The fluorescence intensity in the membrane determines cell densities and monitors the existence of discontinuities in a 2D tissue.
{"title":"Optical Real-time Oxygen Monitoring in 2D Tissues","authors":"D. Mojena, C. Lopez-Serrano, N. López-Ruiz, J. Jorcano, P. Acedo","doi":"10.1364/FTS.2019.JTH2A.26","DOIUrl":"https://doi.org/10.1364/FTS.2019.JTH2A.26","url":null,"abstract":"An optical sensor based on porphyrin is used to monitor oxygen concentration in 2D cell cultures. The fluorescence intensity in the membrane determines cell densities and monitors the existence of discontinuities in a 2D tissue.","PeriodicalId":174423,"journal":{"name":"Optical Sensors and Sensing Congress (ES, FTS, HISE, Sensors)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116847265","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}
Pub Date : 2019-06-25DOI: 10.1364/SENSORS.2019.STU4D.1
Jess V. Ford, C. Baldwin
The use of optical systems is pervasive in the modern world and getting more so. However, few practitioners of the art realize how much development has occurred in the areas of extreme environments. This paper gives a short overview of oil & gas optical sensing and a case study in the development of a downhole VIS-NIR photometric analyzer for crude oil characterization.
{"title":"Downhole Sensing: 177 C Are you Kidding?","authors":"Jess V. Ford, C. Baldwin","doi":"10.1364/SENSORS.2019.STU4D.1","DOIUrl":"https://doi.org/10.1364/SENSORS.2019.STU4D.1","url":null,"abstract":"The use of optical systems is pervasive in the modern world and getting more so. However, few practitioners of the art realize how much development has occurred in the areas of extreme environments. This paper gives a short overview of oil & gas optical sensing and a case study in the development of a downhole VIS-NIR photometric analyzer for crude oil characterization.","PeriodicalId":174423,"journal":{"name":"Optical Sensors and Sensing Congress (ES, FTS, HISE, Sensors)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116900472","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}
Pub Date : 2019-06-25DOI: 10.1364/FTS.2019.JW3A.17
Martin Kykta
Simple equations for multiple reflection and absorption in a free standing transparent dielectric medium can be efficiently transformed to account for reflection and absorption in a highly scattering medium.
在独立透明介质中多次反射和吸收的简单方程可以有效地转化为考虑高散射介质中的反射和吸收。
{"title":"Simple Model of Light Transmission and Reflection for a Free Standing Highly Scattering Dielectric Medium","authors":"Martin Kykta","doi":"10.1364/FTS.2019.JW3A.17","DOIUrl":"https://doi.org/10.1364/FTS.2019.JW3A.17","url":null,"abstract":"Simple equations for multiple reflection and absorption in a free standing transparent dielectric medium can be efficiently transformed to account for reflection and absorption in a highly scattering medium.","PeriodicalId":174423,"journal":{"name":"Optical Sensors and Sensing Congress (ES, FTS, HISE, Sensors)","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123518989","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}
Pub Date : 2019-06-25DOI: 10.1364/SENSORS.2019.SW5A.7
W. Pan, Xiaodi Zhang, B. Yousefi, Taylor Bolt, J. Billings, S. Y. Lee, E. Buckley, S. Keilholz
The physiological cardiac/respiratory activities in the rat cortex were recorded and evaluated with fiber probe. Despite different generation frequencies, the cardiac/respiratory pulse amplitudes show correlated dynamics in slow fluctuation, suggesting common modulation mechanism.
{"title":"Investigating Physiological Signals in the Rat Brain with Optical Fiber Probe","authors":"W. Pan, Xiaodi Zhang, B. Yousefi, Taylor Bolt, J. Billings, S. Y. Lee, E. Buckley, S. Keilholz","doi":"10.1364/SENSORS.2019.SW5A.7","DOIUrl":"https://doi.org/10.1364/SENSORS.2019.SW5A.7","url":null,"abstract":"The physiological cardiac/respiratory activities in the rat cortex were recorded and evaluated with fiber probe. Despite different generation frequencies, the cardiac/respiratory pulse amplitudes show correlated dynamics in slow fluctuation, suggesting common modulation mechanism.","PeriodicalId":174423,"journal":{"name":"Optical Sensors and Sensing Congress (ES, FTS, HISE, Sensors)","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129052643","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}
Pub Date : 2019-06-25DOI: 10.1364/FTS.2019.JTH2A.6
N. Pinker, G. Shtenberg
Oxidized porous silicon nanostructures, Fabry-Perot thin film, is synthesized and used as optical transducer element for early detection of bovine mastitis utilizing specific predicting biomarkers.
{"title":"Early Detection of Subclinical Mastitis in Dairy Cows based on Porous Silicon Fabry–Pérot Lab-on-a-Chip Device","authors":"N. Pinker, G. Shtenberg","doi":"10.1364/FTS.2019.JTH2A.6","DOIUrl":"https://doi.org/10.1364/FTS.2019.JTH2A.6","url":null,"abstract":"Oxidized porous silicon nanostructures, Fabry-Perot thin film, is synthesized and used as optical transducer element for early detection of bovine mastitis utilizing specific predicting biomarkers.","PeriodicalId":174423,"journal":{"name":"Optical Sensors and Sensing Congress (ES, FTS, HISE, Sensors)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127848866","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}
Pub Date : 2019-06-25DOI: 10.1364/SENSORS.2019.STU2D.3
R. Kostecki, Bin Zhang, Abdeljalil El Habti, Azim Arman, M. Hutchinson, P. Tricker, D. Fleury, R. Narayan, H. Ebendorff‐Heidepriem
We show preliminary results of an optical fiber based reversible in-vivo biosensor for understanding redox balance within living systems. The biosensor measured protein carbonyls (oxygen metabolism marker) in pig-skin, live mouse, and wheat plant.
{"title":"Reversible Protein Carbonylation In-Vivo Biosensor","authors":"R. Kostecki, Bin Zhang, Abdeljalil El Habti, Azim Arman, M. Hutchinson, P. Tricker, D. Fleury, R. Narayan, H. Ebendorff‐Heidepriem","doi":"10.1364/SENSORS.2019.STU2D.3","DOIUrl":"https://doi.org/10.1364/SENSORS.2019.STU2D.3","url":null,"abstract":"We show preliminary results of an optical fiber based reversible in-vivo biosensor for understanding redox balance within living systems. The biosensor measured protein carbonyls (oxygen metabolism marker) in pig-skin, live mouse, and wheat plant.","PeriodicalId":174423,"journal":{"name":"Optical Sensors and Sensing Congress (ES, FTS, HISE, Sensors)","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131987776","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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