Imaging, Spectroscopic, High-Contrast, and Interferometric Instrumentation

Design of wide-field Nasmyth optical system for a submillimeter camera

[+] Author Affiliations
Toshihiro Tsuzuki, Yutaro Sekimoto

National Astronomical Observatory of Japan, Advanced Technology Center, 2-21-1 Osawa, Mitaka, Tokyo 181-8588, Japan

Tom Nitta

National Astronomical Observatory of Japan, Advanced Technology Center, 2-21-1 Osawa, Mitaka, Tokyo 181-8588, Japan

University of Tsukuba, Department of Physics, Faculty of Pure and Applied Sciences, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8577, Japan

JSPS Research Fellow, 5-3-1 Kojimachi, Chiyoda-ku, Tokyo 102-0083, Japan

Hiroaki Imada, Masumichi Seta, Naomasa Nakai

University of Tsukuba, Department of Physics, Faculty of Pure and Applied Sciences, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8577, Japan

Shigeyuki Sekiguchi

National Astronomical Observatory of Japan, Advanced Technology Center, 2-21-1 Osawa, Mitaka, Tokyo 181-8588, Japan

The University of Tokyo, Graduate School of Science, Department of Astronomy, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8654, Japan

J. Astron. Telesc. Instrum. Syst. 1(2), 025002 (Feb 24, 2015). doi:10.1117/1.JATIS.1.2.025002
History: Received July 2, 2014; Accepted January 14, 2015
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Abstract.  A wide-field Nasmyth optical system that connects a planned 10-m Ritchey-Chrétien telescope to a submillimeter camera is reported. This diffraction-limited system has a 1-deg field of view at 850 GHz, filled with a more than 20,000-pixel camera. The system enables us to carry out large field surveys of distant galaxies within reasonable time scales. The size of the Nasmyth optics is reasonably compact and its cryogenic part including the vacuum window, cryogenic lens, and IR block filters can be built using existing technologies at a reasonable cost. This type of optical system can be applied for the optical design of millimeter, terahertz, and other submillimeter instruments.

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© 2015 Society of Photo-Optical Instrumentation Engineers

Citation

Toshihiro Tsuzuki ; Tom Nitta ; Hiroaki Imada ; Masumichi Seta ; Naomasa Nakai, et al.
"Design of wide-field Nasmyth optical system for a submillimeter camera", J. Astron. Telesc. Instrum. Syst. 1(2), 025002 (Feb 24, 2015). ; http://dx.doi.org/10.1117/1.JATIS.1.2.025002


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