Measurement of Light Absorbing Aerosols with Folded-Jamin Photothermal Interferometry
In this study, a photothermal interferometer was developed, based on a folded-Jamin polarization instrument with refractive-index sensitive configuration, in order to characterize light-absorbing aerosols. The feasibility of our interferometric technique was demonstrated by performing photothermal s...
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-05-01
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| Series: | Sensors |
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| Online Access: | https://www.mdpi.com/1424-8220/20/9/2615 |
| _version_ | 1827717430207578112 |
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| author | Jeonghoon Lee Hans Moosmüller |
| author_facet | Jeonghoon Lee Hans Moosmüller |
| author_sort | Jeonghoon Lee |
| collection | DOAJ |
| description | In this study, a photothermal interferometer was developed, based on a folded-Jamin polarization instrument with refractive-index sensitive configuration, in order to characterize light-absorbing aerosols. The feasibility of our interferometric technique was demonstrated by performing photothermal spectroscopy characterizing spark-generated black carbon particles with atmospherically relevant concentrations and atmospheric aerosols in a metropolitan area. The sensitivity of this interferometric system for both laboratory-generated aerosols and atmospheric aerosols was ~ 1 (μg/m<sup>3</sup>)/μV, which is sufficient for the monitoring of black carbon aerosol in urban areas. |
| first_indexed | 2024-03-10T20:02:21Z |
| format | Article |
| id | doaj.art-5b003165b1f14e6a9945cc97e5f9350f |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-03-10T20:02:21Z |
| publishDate | 2020-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-5b003165b1f14e6a9945cc97e5f9350f2023-11-19T23:27:18ZengMDPI AGSensors1424-82202020-05-01209261510.3390/s20092615Measurement of Light Absorbing Aerosols with Folded-Jamin Photothermal InterferometryJeonghoon Lee0Hans Moosmüller1School of Mechanical Engineering, Korea University of Technology and Education, Byeongcheon-myeon, Cheonan 31253, KoreaLaboratory for Aerosol Science, Spectroscopy, and Optics, Desert Research Institute, Nevada System of Higher Education, Reno, NV 89512, USAIn this study, a photothermal interferometer was developed, based on a folded-Jamin polarization instrument with refractive-index sensitive configuration, in order to characterize light-absorbing aerosols. The feasibility of our interferometric technique was demonstrated by performing photothermal spectroscopy characterizing spark-generated black carbon particles with atmospherically relevant concentrations and atmospheric aerosols in a metropolitan area. The sensitivity of this interferometric system for both laboratory-generated aerosols and atmospheric aerosols was ~ 1 (μg/m<sup>3</sup>)/μV, which is sufficient for the monitoring of black carbon aerosol in urban areas.https://www.mdpi.com/1424-8220/20/9/2615photothermal interferometrylight absorptionaerosolsblack carbon |
| spellingShingle | Jeonghoon Lee Hans Moosmüller Measurement of Light Absorbing Aerosols with Folded-Jamin Photothermal Interferometry Sensors photothermal interferometry light absorption aerosols black carbon |
| title | Measurement of Light Absorbing Aerosols with Folded-Jamin Photothermal Interferometry |
| title_full | Measurement of Light Absorbing Aerosols with Folded-Jamin Photothermal Interferometry |
| title_fullStr | Measurement of Light Absorbing Aerosols with Folded-Jamin Photothermal Interferometry |
| title_full_unstemmed | Measurement of Light Absorbing Aerosols with Folded-Jamin Photothermal Interferometry |
| title_short | Measurement of Light Absorbing Aerosols with Folded-Jamin Photothermal Interferometry |
| title_sort | measurement of light absorbing aerosols with folded jamin photothermal interferometry |
| topic | photothermal interferometry light absorption aerosols black carbon |
| url | https://www.mdpi.com/1424-8220/20/9/2615 |
| work_keys_str_mv | AT jeonghoonlee measurementoflightabsorbingaerosolswithfoldedjaminphotothermalinterferometry AT hansmoosmuller measurementoflightabsorbingaerosolswithfoldedjaminphotothermalinterferometry |