Preliminary study on broadband antireflection coatings for large aperture telescopes

作     者：Ye-Ru Wang Xin-Nan Li Jin-Feng Wang Jie Tian 

作者机构：National Astronomical Observatories/Nanjing Institute of Astronomical Optics&TechnologyChinese Academy of SciencesNanjing 210042China Key Laboratory of Astronomical Optics&TechnologyNanjing Institute of Astronomical Optics&TechnologyChinese Academy of SciencesNanjing 210042China University of Chinese Academy of SciencesBeijing 100049China 

出 版 物：《Research in Astronomy and Astrophysics》 (天文和天体物理学研究（英文版）)

年 卷 期：2017年第17卷第12期

页      面：53-64页

核心收录：

学科分类：07[理学] 070401[理学-天体物理] 0704[理学-天文学] 

基　　金：supported by the National Natural Science Foundation of China(Grant No.11603055) 

主　　题：instrumentation:miscellaneous methods:numerical techniques:spectroscopic 

摘      要：A broadband anti-reflective（AR） coating design for astronomical large-aperture telescopes is proposed. We give simulations of two-, three-and four-layer silica sol-gel on fused silica and finally get the optimal optical constants. As a comparison, we discuss the traditional dielectric material that has been applied to broadband AR coatings. To better guide the following experiment, we also conduct error analysis and feasibility analysis, combining with the technological characteristics of sol-gel. The analytical method is suitable for other wavebands and substrates. It is also instructive for large area AR coatings in the field of solar cells.