Design and first-light performance of TES bolometer arrays for submillimeter spectroscopy with ZEUS-2
Design and first-light performance of TES bolometer arrays for submillimeter spectroscopy with ZEUS-2
复制标题
使用 ZEUS-2 进行亚毫米光谱的 TES 测辐射热计阵列的设计和首次光性能
DOI：
10.1117/12.927237
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发表时间：
2012
影响因子：
3.2
通讯作者：
M. Amiri
中科院分区：
文献类型：
--
作者：
C. Ferkinhoff;T. Nikola;S. Parshley;G. Stacey;K. Irwin;Hsiao;M. Niemack;M. Halpern;M. Hasselfield;M. Amiri
我们最近在加州理工学院亚毫米波天文台委托了第二代红移（z）和早期宇宙光谱仪（ZEUS-2）。ZEUS-2是一个长缝光栅光谱仪（R~1000），用于亚毫米波长范围的观测，最适合观测早期宇宙星系的红移远红外光谱线。在这里，我们报告的设计和第一光性能的第一TES测辐射热计阵列安装在ZEUS-2。该阵列具有280个像素，每个像素1.26平方毫米，并被布置为在天空上的~8个空间位置提供~35个像素的光谱。100微米的1/4波长后短路和匹配自由空间阻抗的金网吸收体为350和450微米的大地窗口提供了接近90%的量子效率。使用SQUID多路复用器和多通道电子器件完成阵列读出。我们还将报告安装两个额外阵列的进展情况，这些阵列经过调整，在200-850微米之间的剩余大地窗口中提供类似的性能。
We have recently commissioned the 2nd generation redshift(z) and Early Universe Spectrometer (ZEUS-2) at the Caltech Submillimeter Observatory. ZEUS-2 is a long-slit grating spectrometer (R~1000) for observations in the submillimeter wavelength regime that is optimized for observations of redshifted far-infrared spectral lines from galaxies in the early universe. Here we report on the design and first light performance of the first TES bolometer array installed in ZEUS-2. This array features 280 pixels each 1.26 mm square and arranged to provide ~35 pixel spectra at ~8 spatial positions on the sky. A 1/4-wavelength back short of 100 micron and gold mesh absorber matching the impedance of free space provides near 90% quantum efficiency for the 350 and 450 micron telluric windows. Array readout is done using SQUID multiplexers and the Multichannel Electronics. We will also report on the progress to install two additional arrays tuned to provide similar performance across the remaining telluric windows between 200-850 microns.