A Small Actively Controlled High-resolution Spectrograph Based on Off-the-shelf Components
A Small Actively Controlled High-resolution Spectrograph Based on Off-the-shelf Components
复制标题
基于现成组件的小型主动控制高分辨率摄谱仪
DOI:
10.1088/1538-3873/abc7ee
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发表时间:
2021
影响因子:
3.5
通讯作者:
Jones H
中科院分区:
文献类型:
--
作者:
Jones H
We present the design and testing of a prototype in-plane echelle spectrograph based on an actively controlled fiber-fed double-pass design. This system aims to be small and efficient with the minimum number of optical surfaces—currently a collimator/camera lens, cross-dispersing prism, grating and a reflector to send light to the detector. It is built from catalog optical components and has dimensions of approximately 20× 30 cm. It works in the optical regime with a resolution of> 70,000. The spectrograph is fed by a bifurcated fiber with one fiber to a telescope and the other used to provide simultaneous Thorium Argon light illumination for wavelength calibration. The positions of the arc lines on the detector are processed in real time and commercial auto-guiding software is used to treat the positions of the arc lines as guide stars. The guiding software sends any required adjustments to mechanical piezo-electric actuators which move the mirror sending light to the camera removing any drift in the position of the arc lines. The current configuration using an sCMOS detector provides a precision of 3.5 milli-pixels equivalent to 4 ms− 1 in a standard laboratory environment.
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DOI:
--
发表时间:
2018
期刊:
Ground-based and Airborne Instrumentation for Astronomy VII
影响因子:
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F. Pepe
通讯作者:
F. Pepe
DOI:
--
发表时间:
2016
期刊:
Astronomical Telescopes + Instrumentation
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1971
期刊:
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C. Anderson
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2015
期刊:
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DOI:
--
发表时间:
2016
期刊:
Astronomical Telescopes + Instrumentation
影响因子:
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作者:
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P. Santin