Infrared optical coatings for the EarthCARE Multispectral Imager
The Earth Cloud, Aerosol and Radiation Explorer mission (EarthCARE) Multispectral Imager (MSI) is a radiometric instrument designed to provide the imaging of the atmospheric cloud cover and the cloud top surface temperature from a sun-synchronous low Earth orbit. The MSI forms part of a suite of fou...
| Main Authors: | , , , |
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| Format: | Journal article |
| Language: | English |
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Optical Society of America
2014
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| _version_ | 1826280666951581696 |
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| author | Hawkins, G Woods, D Sherwood, R Djotni, K |
| author_facet | Hawkins, G Woods, D Sherwood, R Djotni, K |
| author_sort | Hawkins, G |
| collection | OXFORD |
| description | The Earth Cloud, Aerosol and Radiation Explorer mission (EarthCARE) Multispectral Imager (MSI) is a radiometric instrument designed to provide the imaging of the atmospheric cloud cover and the cloud top surface temperature from a sun-synchronous low Earth orbit. The MSI forms part of a suite of four instruments destined to support the European Space Agency Living Planet mission on-board the EarthCARE satellite payload to be launched in 2016, whose synergy will be used to construct three-dimensional scenes, textures, and temperatures of atmospheric clouds and aerosols. The MSI instrument contains seven channels: four solar channels to measure visible and short-wave infrared wavelengths, and three channels to measure infrared thermal emission. In this paper, we describe the optical layout of the infrared instrument channels, thin-film multilayer designs, the coating deposition method, and the spectral system throughput for the bandpass interference filters, dichroic beam splitters, lenses, and mirror coatings to discriminate wavelengths at 8.8, 10.8, and 12.0 μm. The rationale for the selection of thin-film materials, spectral measurement technique, and environmental testing performance are also presented.
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| first_indexed | 2024-03-07T00:17:08Z |
| format | Journal article |
| id | oxford-uuid:7b3ca279-91c0-4ac8-8a3a-2c58c8915896 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T00:17:08Z |
| publishDate | 2014 |
| publisher | Optical Society of America |
| record_format | dspace |
| spelling | oxford-uuid:7b3ca279-91c0-4ac8-8a3a-2c58c89158962022-03-26T20:49:16ZInfrared optical coatings for the EarthCARE Multispectral ImagerJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:7b3ca279-91c0-4ac8-8a3a-2c58c8915896EnglishSymplectic ElementsOptical Society of America2014Hawkins, GWoods, DSherwood, RDjotni, KThe Earth Cloud, Aerosol and Radiation Explorer mission (EarthCARE) Multispectral Imager (MSI) is a radiometric instrument designed to provide the imaging of the atmospheric cloud cover and the cloud top surface temperature from a sun-synchronous low Earth orbit. The MSI forms part of a suite of four instruments destined to support the European Space Agency Living Planet mission on-board the EarthCARE satellite payload to be launched in 2016, whose synergy will be used to construct three-dimensional scenes, textures, and temperatures of atmospheric clouds and aerosols. The MSI instrument contains seven channels: four solar channels to measure visible and short-wave infrared wavelengths, and three channels to measure infrared thermal emission. In this paper, we describe the optical layout of the infrared instrument channels, thin-film multilayer designs, the coating deposition method, and the spectral system throughput for the bandpass interference filters, dichroic beam splitters, lenses, and mirror coatings to discriminate wavelengths at 8.8, 10.8, and 12.0 μm. The rationale for the selection of thin-film materials, spectral measurement technique, and environmental testing performance are also presented. |
| spellingShingle | Hawkins, G Woods, D Sherwood, R Djotni, K Infrared optical coatings for the EarthCARE Multispectral Imager |
| title | Infrared optical coatings for the EarthCARE Multispectral Imager |
| title_full | Infrared optical coatings for the EarthCARE Multispectral Imager |
| title_fullStr | Infrared optical coatings for the EarthCARE Multispectral Imager |
| title_full_unstemmed | Infrared optical coatings for the EarthCARE Multispectral Imager |
| title_short | Infrared optical coatings for the EarthCARE Multispectral Imager |
| title_sort | infrared optical coatings for the earthcare multispectral imager |
| work_keys_str_mv | AT hawkinsg infraredopticalcoatingsfortheearthcaremultispectralimager AT woodsd infraredopticalcoatingsfortheearthcaremultispectralimager AT sherwoodr infraredopticalcoatingsfortheearthcaremultispectralimager AT djotnik infraredopticalcoatingsfortheearthcaremultispectralimager |