High-performance infrared narrow-bandpass filters for the Indian National Satellite System meteorological instrument (INSAT-3D)
Hawkins, G. J., Sherwood, R. E., Barrett, B. M., Wallace, M., Orr, H. J. B., Matthews, K. and Bisht, S. (2008) High-performance infrared narrow-bandpass filters for the Indian National Satellite System meteorological instrument (INSAT-3D). Applied Optics, 47 (13). pp. 2346-2356. ISSN 0003-6935
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To link to this article DOI: 10.1364/AO.47.002346
This paper describes the design and manufacture of a set of precision cooled (210K) 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. (C) 2008 Optical Society of America.
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