CUBES: application of image slicers to reformat the field for two spectral resolving powers
CUBES: application of image slicers to reformat the field for two spectral resolving powers
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CUBES：应用图像切片器重新格式化场以获得两种光谱分辨率
DOI：
10.1117/12.2626233
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发表时间：
2022
期刊：
影响因子：
--
通讯作者：
Calcines Rosario A
中科院分区：
文献类型：
--
作者：
Calcines Rosario A
卡塞格伦U波段高效光谱仪（CUBES）是一种设计用于305至400 nm观测的高效光谱仪。它将被集成在甚大望远镜（VLT）的卡塞格伦焦点上。图像切片技术被应用于重新格式化的视场，降低了光谱仪的入口狭缝集光率，并最大限度地减少了光谱仪的体积和重量没有狭缝损失。两个图像切片器将为CUBES提供两种光谱分辨率：高分辨率（HR）R≥ 20，000，低分辨率（LR）R≥ 5，000。两个图像切片器都由两个六球面镜阵列组成。对于HR模式，将1.5arcsec × 10arcsec的矩形视场重新格式化为0.19mm × 88 mm的狭缝;对于LR模式，将6arcsec × 10arcsec的视场重新格式化为0.77mm × 88 mm的狭缝，切片镜的宽度分别为0.5mm和2 mm。 CUBES目前处于初步设计阶段（阶段B）。本通信介绍了HR和LR图像切片器的概念（阶段A）设计和主要性能，以解决以下技术挑战：紧凑的布局，光学元件的数量最少，以优化吞吐量，近衍射限制的光学质量，远心设计，所有视场片的出射光瞳重叠，切片镜的分布以减少阴影，并为CUBES将工作的非常短的波长选择最佳基板。
The Cassegrain U-Band Efficient Spectrograph (CUBES) is a high-efficiency spectrograph designed for observations from 305 to 400nm. It will be integrated at a Cassegrain focus of the Very Large Telescope (VLT). The image slicer technology is applied to reformat the field of view reducing the spectrograph entrance slit etendue and minimising the spectrograph volume and weight without slit losses. Two image slicers will provide CUBES with two spectral resolving powers: R≥20,000 for high resolution (HR) and R≥5,000 for low resolution (LR). Both image slicers are composed of two arrays of six spherical mirrors. For the HR mode, a rectangular field of view of 1.5arcsec by 10arcsec is reorganised into a slit of 0.19mm × 88mm; for the LR mode, a field of view of 6arcsec by 10arcsec is reformatted into a slit of 0.77mm × 88mm, with slicer mirrors of width 0.5mm and 2mm, respectively. CUBES is currently in the Preliminary Design Phase (Phase B). This communication presents the Conceptual (Phase A) design and the main performance for the HR and LR image slicers addressing the following technological challenges: compact layout with the minimum number of optical components to optimise throughput, near diffraction limited optical quality, telecentric design with overlapped exit pupils for all slices of the field of view, distribution of the slicer mirrors to reduce shadows and selection of the best substrate for the very short wavelengths at which CUBES will operate.
CUBES 简介：卡塞格伦 U 波段巴西 ESO 摄谱仪
影响因子：
3.9
作者：
P. Bristow;B. Barbuy;V. Macanhan;B. Castilho;H. Dekker;B. Delabre;M. Diaz;C. Gneiding;F. Kerber;H. Kuntschner;G. L. Mura;R. Reiss;J. Vernet
通讯作者：
J. Vernet
UVES（ESO VLT 的中阶梯光栅光谱仪）的性能以及首次观测恒星和类星体的亮点
影响因子：
3
作者：
S. D’odorico;S. Cristiani;H. Dekker;V. Hill;A. Kaufer;Tae;F. Primas
通讯作者：
F. Primas
CUBES：卡塞格伦 U 波段高效摄谱仪
DOI：
10.1117/12.2629990
发表时间：
2022
期刊：
--
影响因子：
--
作者：
Cristiani S
通讯作者：
Cristiani S