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

Toshihiro Tsuzuki; Tom Nitta; Hiroaki Imada; Masumichi Seta; Naomasa Nakai; Shigeyuki Sekiguchi; Yutaro Sekimoto

doi:10.1117/1.JATIS.1.2.025002

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24 February 2015 Design of wide-field Nasmyth optical system for a submillimeter camera

Toshihiro Tsuzuki, Tom Nitta, Hiroaki Imada, Masumichi Seta, Naomasa Nakai, Shigeyuki Sekiguchi, Yutaro Sekimoto

J. of Astronomical Telescopes, Instruments, and Systems, 1(2), 025002 (2015). https://doi.org/10.1117/1.JATIS.1.2.025002

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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Toshihiro Tsuzuki, Tom Nitta, Hiroaki Imada, Masumichi Seta, Naomasa Nakai, Shigeyuki Sekiguchi, and Yutaro Sekimoto "Design of wide-field Nasmyth optical system for a submillimeter camera," Journal of Astronomical Telescopes, Instruments, and Systems 1(2), 025002 (24 February 2015). https://doi.org/10.1117/1.JATIS.1.2.025002

Published: 24 February 2015

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