Filters for the International Solar Terrestrial Physics Mission far-ultraviolet imager

Journal Article · Tue Nov 30 23:00:00 EST 1993 · Optical Engineering; (United States)

DOI:https://doi.org/10.1117/12.149192· OSTI ID:5418342

Zukic, M; Torr, D G; Kim, Jongmin ^[1]; Spann, J F; Torr, M R ^[2]

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1. Univ. of Alabama, Huntsville, AL (United States). Dept. of Physics
2. National Aeronautics and Space Administration, Huntsville, AL (United States). Marshall Space Flight Center

The far-ultraviolet (FUV) imager for the International Solar Terrestrial Physics (ISTP) Mission is designed to image four features of the aurora: O I lines at 130.4 and 135.6 nm and the N[sub 2] Lyman-Birge-Hopfield (LBH) bands between 140 and 160 nm (LBH long) and 160 and 180 nm (LBH long). The authors report the design and fabrication of narrowband and broadband filters for the ISTP FUV imager. Narrowband filters designed and fabricated for the O I lines have a bandwidth of less than 5 nm and a peak transmittance of 23.9 and 38.3% at 130.4 and 135.6 nm, respectively. Broadband filters designed and fabricated for LBH bands have the transmittance close to 60%. Blocking of out-of-band wavelengths for all filters is better than 5 [times] 10[sup [minus]3]% with the transmittance at 121.6 nm of less than 10[sup [minus]6]%.

• OSTI ID: 5418342
• Journal Information: Optical Engineering; (United States), Journal Name: Optical Engineering; (United States) Vol. 32:12; ISSN 0091-3286; ISSN OPEGAR
• Country of Publication: United States
• Language: English

Related Subjects

661320* -- Auroral
Ionospheric
& Magnetospheric Phenomena-- (1992-)
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
AIRGLOW
AURORAE
DESIGN
ELECTROMAGNETIC RADIATION
EMISSION SPECTRA
FAR ULTRAVIOLET RADIATION
FILTERS
IMAGES
MEASURING INSTRUMENTS
OPTICAL FILTERS
RADIATIONS
REMOTE SENSING
SPECTRA
ULTRAVIOLET RADIATION