Development of compact metal-mirror image slicer unit for optical telescope of the SOLAR-C mission

Y. Suematsu; K. Saito; M. Koyama; Y. Enokida; Y. Okura; T. Nakayasu; T. Sukegawa

doi:10.1117/12.2231947

29 July 2016 Development of compact metal-mirror image slicer unit for optical telescope of the SOLAR-C mission

Y. Suematsu, K. Saito, M. Koyama, Y. Enokida, Y. Okura, T. Nakayasu, T. Sukegawa

Proceedings Volume 9904, Space Telescopes and Instrumentation 2016: Optical, Infrared, and Millimeter Wave; 990411 (2016) https://doi.org/10.1117/12.2231947
Event: SPIE Astronomical Telescopes + Instrumentation, 2016, Edinburgh, United Kingdom

Abstract

To realize an integral field unit (IFU) for a one-meter class optical telescope (SUVIT) on board Japanese next solar mission (SOLAR-C), we studied an optical design and manufacturing method to attain high optical performances for IFU, using a novel manufacturing technique developed by Canon. The IFU consists of micro-image slicer of 45 arrayed 30-micron-thick metal mirrors and a pseudo-pupil mirror array for making three pseudo-slits, providing possible optical configuration for a coexistence with a usual slit spectrograph without movable mechanism. The IFU mirrors were deposited by a protected silver coating for high reflectivity in visible and near IR wavelength region. We present the optical design, performance of prototype IFU and space qualification tests of the silver coating.

Citation Download Citation

Y. Suematsu, K. Saito, M. Koyama, Y. Enokida, Y. Okura, T. Nakayasu, and T. Sukegawa "Development of compact metal-mirror image slicer unit for optical telescope of the SOLAR-C mission", Proc. SPIE 9904, Space Telescopes and Instrumentation 2016: Optical, Infrared, and Millimeter Wave, 990411 (29 July 2016); https://doi.org/10.1117/12.2231947

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