Design and development of the high-resolution spectrograph HERMES and the unique volume phase holographic gratings

被引：7
|
作者：
Heijmans, J. A. C. [1 ]
Gers, L. [1 ]
Faught, B. [2 ]
机构：
[1] AAO, Eastwood, NSW, Australia
[2] Cascade Opt Corp, Grand Rapids, MI USA
来源：
OPTICAL DESIGN AND ENGINEERING IV | 2011年 / 8167卷
关键词：
Large aperture; VPH; grating; high spectral resolution; polarization;
D O I：
10.1117/12.897273
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We report on the grating development for the High Efficiency and Resolution Multi Element Spectrograph (HERMES). This paper discusses the challenges of designing, optimizing, and tolerancing large aperture volume phase holographic (VPH) gratings for HERMES. The high spectral resolution requirements require steep angles of incidence, of 67.2 degrees, and high line densities, ranging between 2400 and 3800 lines per mm, resulting in VPH gratings that are highly s-polarized that push the fabrication process to its limits.
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页数：9
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