11 November 1994 Reflective filters design for self-filtering narrowband ultraviolet imaging experiment wide-field surveys (NUVIEWS) project
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Abstract
We report the design of multilayer reflective filters for the self-filtering cameras of the NUVIEWS project. Wide angle self-filtering cameras were designed to image the CIV (154.9 nm) line emission, and H2 Lyman band fluorescence (centered at 161 nm) over a 20 degree(s) X 30 degree(s) field of view. A key element of the filter design includes the development of (pi) -multilayers optimized to provide maximum reflectance at 154.9 nm and 161 nm for the respective cameras without significant spectral sensitivity to the large cone angle of the incident radiation. We applied self-filtering concepts to design NUVIEWS telescope filters that are composed of three reflective mirrors and one folding mirror. The filters with narrowband widths of 6 and 8 nm at 154.9 and 161 nm, respectively, have net throughputs of more than 50% with average blocking of out-of-band wavelengths better than 3 X 10-4%.
© (1994) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Jong Ho Park, Jongmin Kim, Muamer Zukic, Douglas G. Torr, "Reflective filters design for self-filtering narrowband ultraviolet imaging experiment wide-field surveys (NUVIEWS) project", Proc. SPIE 2279, Advances in Multilayer and Grazing Incidence X-Ray/EUV/FUV Optics, (11 November 1994); doi: 10.1117/12.193132; https://doi.org/10.1117/12.193132
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KEYWORDS
Reflectivity

Optical filters

Multilayers

Mirrors

Reflection

Image filtering

Telescopes

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