High-performance FIR-bandpass filters for the ISOPHOT instrument

Hans-Peter Gemuend; Ernst Kreysa; Josef Schubert; Wolfgang Kraetschmer

doi:10.1117/12.185837

14 September 1994 High-performance FIR bandpass filters for the ISOPHOT instrument

Hans-Peter Gemuend, Ernst Kreysa, Josef Schubert, Wolfgang Kraetschmer

Proceedings Volume 2268, Infrared Spaceborne Remote Sensing II; (1994) https://doi.org/10.1117/12.185837
Event: SPIE's 1994 International Symposium on Optics, Imaging, and Instrumentation, 1994, San Diego, CA, United States

Abstract

The far-infrared filters for the satellite subexperiment ISOPHOT have to fulfil a number of specific requirements. This is a report about the developed filter concept which was used to match all specifications. In a wide wavelength region this concept is capable of defining broad or narrow bandpasses in a flexible way. The filters which have been constructed are robust and survive multiple cryogenic cycles. They combine high passband transmission with extreme stopband rejection. Details are given for some representative ISOPHOT FIR-filters.

Citation Download Citation

Hans-Peter Gemuend, Ernst Kreysa, Josef Schubert, and Wolfgang Kraetschmer "High-performance FIR bandpass filters for the ISOPHOT instrument", Proc. SPIE 2268, Infrared Spaceborne Remote Sensing II, (14 September 1994); https://doi.org/10.1117/12.185837

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