Very high-resolution spectroscopy: the ESPRESSO optical design

被引：5
|
作者：
Spano, P. [1 ,2 ]
Delabre, B. [3 ]
Dekker, H.
Pepe, F. [4 ]
Zerbi, F. M. [1 ]
Di Marcantonio, P. [5 ]
Cristiani, S. [5 ]
Megevand, D. [4 ]
机构：
[1] INAF Osservatorio Astron Brera, V Bianchi 46, I-23807 Merate, Italy
[2] Herzberg Inst Astrophys, Victoria, BC V9E 2E7, Canada
[3] European So Observ, D-85748 Munich, Germany
[4] Univ Genve, Obs Astron, CH-1290 Versoix, Switzerland
[5] INAF Osserv Astron Trieste, I-34143 Trieste, Italy
来源：
GROUND-BASED AND AIRBORNE INSTRUMENTATION FOR ASTRONOMY IV | 2012年 / 8446卷
关键词：
High-resolution spectrograph; VLT instrumentation; VPH gratings; anamorphic magnification; pupil slicing;
D O I：
10.1117/12.925947
中图分类号：
V [航空、航天];
学科分类号：
08 ; 0825 ;
摘要：
Resolving power of spectrographs for large telescopes is generally limited by the maximum dimension of the dispersion gratings. To overcome this limit, innovative optical configurations have been designed, starting from the ideas proposed for CODEX. By properly combining pupil slicing and anamorphic magnification, a R similar to 63'000-210'000 spectrograph has been designed. Many different solutions were proposed during the early design phases, and a detailed trade off study has been carried out to improve efficiency, manufacturability, and reduce risks and costs of the preliminary designs. We present a full description of the optical design of the spectrograph after preliminary design review, together with expected performances.
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收藏
页数：12
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