What is it about?
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, & 12.0 µm.
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Why is it important?
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.
Perspectives
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.
Dr Gary J Hawkins
University of Reading
Read the Original
This page is a summary of: Infrared optical coatings for the EarthCARE Multispectral Imager, Applied Optics, October 2014, Optical Society of America (OSA),
DOI: 10.1364/ao.53.006983.
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