A fiber-fed VPHG-based high resolution spectrograph for moderate aperture robotic telescopes

被引：3
|
作者：
Toso, G [1 ]
Mazzoleni, R [1 ]
Zerbi, FM [1 ]
Conconi, P [1 ]
Molinari, E [1 ]
机构：
[1] Osserv Astron Brera, I-23807 Merate, LC, Italy
来源：
GROUND-BASED INSTRUMENTATION FOR ASTRONOMY, PTS 1-3 | 2004年 / 5492卷
关键词：
VPHG; fiber-fed spectrograph; robotic telescope;
D O I：
10.1117/12.580327
中图分类号：
V [航空、航天];
学科分类号：
08 ; 0825 ;
摘要：
The use of high diffraction efficiency Volume Phase Holographic grating as central element in a spectrograph allows to consistently increase the instrumental throughput. Moreover the geometry they use. allow them to be located in simplified optical designs and their manufacturing characteristics make them ideal also for the high resolution (R > 20,000) domain. VPHG are the perfect solution for high resolution spectrograph coupled with moderate collecting areas such as those of robotic telescopes nowadays distributed worldwide. We present in this paper the spectrograph, currently under construction, that will equip the REM telescope at la Silla Observatory, Chile.
引用
收藏
页码：932 / 943
页数：12
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