Far-ultraviolet filters for the ISTP UV imager

Muamer Zukic; Douglas G. Torr; Jongmin Kim; James F. Spann; Marsha R. Torr

doi:10.1117/12.60603

29 June 1992 Far-ultraviolet filters for the ISTP UV imager

Muamer Zukic, Douglas G. Torr, Jongmin Kim, James F. Spann, Marsha R. Torr

Proceedings Volume 1745, Instrumentation for Planetary and Terrestrial Atmospheric Remote Sensing; (1992) https://doi.org/10.1117/12.60603
Event: San Diego '92, 1992, San Diego, CA, United States

Abstract

The far ultraviolet (FUV) imager for the International Solar-Terrestrial Physics (ISTP) mission is designed to image four features of the aurora: 0 1 lines at 130.4 nm and 135.6 nm and the N2 Lyman-Birge-Hopfield (LBH) bands between 140 nm -160 nm (LBH long) and 160 nm 180 nm (LBH long). We report the design and fabrication of narrow-band and broadband filters for the ISTP FUV imager. Narrow-band filters designed and fabricated for the 0 I lines have a bandwidth of less than 5 nm and a peak transmittance of 22.3% and 29.6% at 130.4 nm and 135.6 nm, respectively. Broadband filters designed and fabricated for LBH bands have the transmittance greater than 40% for LBH short and close to 60% for LBH long. Blocking of outof-band wavelengths for all filters is better than 0.001% with the transmittance at 121.6 nm of less than 10-6%.

Citation Download Citation

Muamer Zukic, Douglas G. Torr, Jongmin Kim, James F. Spann, and Marsha R. Torr "Far-ultraviolet filters for the ISTP UV imager", Proc. SPIE 1745, Instrumentation for Planetary and Terrestrial Atmospheric Remote Sensing, (29 June 1992); https://doi.org/10.1117/12.60603

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