面向大尺寸低温氧化铝光学元件的宽带毫米波抗反射涂层
仪器与探测器
2020-04-01 v2 天体物理仪器与方法
摘要
我们提出了两种用于低温烧结多晶氧化铝光学元件的宽带（约77–252 GHz）毫米波抗反射涂层方案：一种用于大尺寸（直径700 mm）平面和平凸元件，另一种用于密集排布的类光学元件阵列，在我们的案例中为直径5 mm的半球（称为“透镜元”）。涂层由三层市售的基于聚四氟乙烯的介电片材组成。透镜元涂层被模压以直接贴合直径150 mm的阵列，而大直径透镜则采用拼接方式涂覆。我们回顾了两种方案的制备工艺，然后讨论了其透射率和反射率的实验室测量。此外，我们给出了涂层材料和氧化铝衬底的推导折射率和损耗角正切。我们发现，在150 GHz和300 K下，大尺寸涂层样品实现了（97 ± 2）%的透射率，透镜元涂层样品实现了（94 ± 3）%的透射率。
引用
@article{arxiv.1912.04272,
title = {Broadband, millimeter-wave antireflection coatings for large-format, cryogenic aluminum oxide optics},
author = {A. Nadolski and J. D. Vieira and J. A. Sobrin and A. M. Kofman and P. A. R. Ade and Z. Ahmed and A. J. Anderson and J. S. Avva and R. Basu Thakur and A. N. Bender and B. A. Benson and L. Bryant and J. E. Carlstrom and F. W. Carter and T. W. Cecil and C. L. Chang and J. R. Cheshire and G. E. Chesmore and J. F. Cliche and A. Cukierman and T. de Haan and M. Dierickx and J. Ding and D. Dutcher and W. Everett and J. Farwick and K. R. Ferguson and L. Florez and A. Foster and J. Fu and J. Gallicchio and A. E. Gambrel and R. W. Gardner and J. C. Groh and S. Guns and R. Guyser and N. W. Halverson and A. H. Harke-Hosemann and N. L. Harrington and R. J. Harris and J. W. Henning and W. L. Holzapfel and D. Howe and N. Huang and K. D. Irwin and O. Jeong and M. Jonas and A. Jones and M. Korman and J. Kovac and D. L. Kubik and S. Kuhlmann and C. -L. Kuo and A. T. Lee and A. E. Lowitz and J. McMahon and J. Meier and S. S. Meyer and D. Michalik and J. Montgomery and T. Natoli and H. Nguyen and G. I. Noble and V. Novosad and S. Padin and Z. Pan and P. Paschos and J. Pearson and C. M. Po sada and W. Quan and A. Rahlin and D. Riebel and J. E. Ruhl and J. T. Sayre and E. Shirokoff and G. Smecher and A. A. Stark and J. Stephen and K. T. Story and A. Suzuki and C. Tandoi and K. L. Thompson and C. Tucker and K. Vanderlinde and G. Wang and N. Whitehorn and V. Yefremenko and K. W. Yoon and M. R. Young},
journal= {arXiv preprint arXiv:1912.04272},
year = {2020}
}
备注
19 pages, 11 figures; submitted 05 Dec 2019, accepted 26 Feb 2020