High-performance infrared narrow-bandpass filters for the Indian National Satellite System meteorological instrument (INSAT-3D)

High-performance infrared narrow-bandpass filters for the Indian National Satellite System meteorological instrument (INSAT-3D)

This paper describes the design and manufacture of a set of precision cooled (210 K) narrow-bandpass filters for the infrared imager and sounder on the Indian Space Research Organisation (ISRO) INSAT-3D meteorological satellite. We discuss the basis for the choice of multilayer coating designs and m...

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Veröffentlicht in:Applied Optics 2008-05, Vol.47 (13), p.2346-2356
Hauptverfasser: Hawkins, G J, Sherwood, R E, Barrett, B M, Wallace, M, Orr, H J B, Matthews, K, Bisht, S
Format: Artikel
Sprache:eng
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Zusammenfassung:This paper describes the design and manufacture of a set of precision cooled (210 K) narrow-bandpass filters for the infrared imager and sounder on the Indian Space Research Organisation (ISRO) INSAT-3D meteorological satellite. We discuss the basis for the choice of multilayer coating designs and materials for 21 differing filter channels, together with their temperature-dependence, thin film deposition technologies, substrate metrology, and environmental durability performance.
ISSN:1559-128X
0003-6935
1539-4522
DOI:10.1364/AO.47.002346