平顶宽带波纹滤光片。

Flat-topped broadband rugate filters.

作者信息

Imenes Anne G, McKenzie David R

机构信息

School of Physics, The University of Sydney, New South Wales, Australia.

出版信息

Appl Opt. 2006 Oct 20;45(30):7841-50. doi: 10.1364/ao.45.007841.

DOI:10.1364/ao.45.007841

PMID:17068518

Abstract

A method of creating rugate interference filters that have flat-topped reflectance across an extended spectral region is presented. The method applies known relations from the classical coupled wave theory to develop a set of equations that gives the spatial frequency distribution of rugate cycles to achieve constant reflectance across a given spectral region. Two examples of the application of this method are discussed: a highly reflective coating for eye protection against harmful laser radiation incident from normal to 45 degrees , and a spectral beam splitter for efficient solar power conversion.

摘要

提出了一种制造在扩展光谱区域具有平顶反射率的褶积干涉滤光片的方法。该方法应用经典耦合波理论中的已知关系来推导一组方程，这些方程给出褶积周期的空间频率分布，以在给定光谱区域实现恒定反射率。讨论了该方法应用的两个例子：一种用于保护眼睛免受从法线到45度入射的有害激光辐射的高反射涂层，以及一种用于高效太阳能转换的光谱分束器。