Design of wide-field Nasmyth optical system for a submillimeter camera
Design of wide-field Nasmyth optical system for a submillimeter camera
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DOI：
10.1117/1.jatis.1.2.025002
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发表时间：
2015-04
期刊：
影响因子：
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通讯作者：
T. Tsuzuki;T. Nitta;H. Imada;M. Seta;N. Nakai;S. Sekiguchi;Y. Sekimoto
中科院分区：
文献类型：
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作者：
T. Tsuzuki;T. Nitta;H. Imada;M. Seta;N. Nakai;S. Sekiguchi;Y. Sekimoto
抽象。报道了一个宽视场的Nasmyth光学系统，它将计划中的10米Ritchey-Chrétien望远镜连接到亚毫米相机上。这个衍射限制系统在850 GHz下具有1度视场，充满了超过20，000像素的相机。该系统使我们能够在合理的时间尺度内对遥远的星系进行大规模的实地调查。Nasmyth光学器件的尺寸相当紧凑，并且其低温部分（包括真空窗口、低温透镜和IR阻挡滤波器）可以使用现有技术以合理的成本来构建。该光学系统可用于毫米波、太赫兹及其它亚毫米波仪器的光学设计。
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.