SPT-3G焦平面的光学表征
天体物理仪器与方法
2018-05-10 v1 仪器与探测器
摘要
第三代南极望远镜相机旨在利用约16,000个 transition-edge sensor (TES) 辐射热计，在三个频段（95、150和220 GHz）测量宇宙微波背景。探测器晶圆上的每个多色像素都有一个宽带正弦天线，通过集总元件滤波器将功率耦合到六个TES上，分别对应三个观测频段和两个偏振方向。焦平面由十个探测器晶圆组成，并通过大孔径光学系统耦合到天空。在此我们给出利用傅里叶变换光谱进行的频段表征，以及焦平面的光学时间常数、光束特性、光学效率和偏振效率的测量结果。探测器的频段与我们的模拟一致，并且具有高的平均光学效率，95、150和220 GHz探测器的平均光学效率分别为86%、77%和66%。探测器的时间常数大多在0.5 ms至5 ms之间。光束呈圆形且尺寸正确，大多数辐射热计的偏振效率超过90%。
引用
@article{arxiv.1805.03219,
title = {Optical Characterization of the SPT-3G Focal Plane},
author = {Zhaodi Pan and Peter Ade and Zeeshan Ahmed and Anderson Adam and Jason Austermann and Jessica Avva and Ritoban Basu Thakur and Bender Amy and Bradford Benson and John Carlstrom and Faustin Carter and Thomas Cecil and Clarence Chang and Jean-Francois Cliche and Ariel Cukierman and Edward Denison and Tijmen de Haan and Junjia Ding and Matt Dobbs and Daniel Dutcher and Wendeline Everett and Allen Foster and Renae Gannon and Adam Gilbert and John Groh and Nils Halverson and Angelina Harke-Horsemann and Nicholas Harrington and Jaosn Henning and Gene Hilton and William Holzapfel and Nicholas Huang and Kent Irwin and Oliver Jeong and Michalle Jonas and Trupti Khaire and Anna Kofman and Milo Korman and Donna Kubik and Steve Kuhlmann and Chaolin Kuo and Adrian Lee and Amy Lowitz and Stephan Meyer and Daniel Michalik and Joshua Montgomery and Andrew Nadolski and Tyler Natoli and Hogan Nguyen and Gavin Noble and Valentyn Novosad and Stephan Padin and John Pearson and Chrystian Posada and Alexandra Rahlin and John Ruhl and Lauren Saunders and James Sayre and Ian Shirley and Erik Shirokoff and Graeme Smecher and Joshua Sobrin and Antony Stark and Kyle Story and Aritoki Suzuki and Qingyang Tang and Keith Thompson and Carole Tucker and Leila Vale and Keith Vanderlinde and Joaquin Vieira and Gensheng Wang and Nathan Whitehorn and Volodymyr Yefremenko and Ki Won Yoon and Matt Young},
journal= {arXiv preprint arXiv:1805.03219},
year = {2018}
}
备注
Conference proceeding for Low Temperature Detectors 2017