Anti-reflection coatings for spectrometers with large spectral ranges

被引：2
|
作者：
Baer, JW
Cole, JL
机构：
来源：
CURRENT DEVELOPMENTS IN OPTICAL DESIGN AND ENGINEERING VI | 1996年 / 2863卷
关键词：
antireflection; broadband AR coatings; spectrometer; linear variable;
D O I：
10.1117/12.256240
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
It is common for spectrometers to cover large spectral ranges with a single focal plane. It is difficult or impossible to strongly suppress reflections with a single coating stack. Abutting short and long wavelengths coatings is expensive, and the performance can still be insufficient. We discuss a novel structure that comprises a single layer whose thickness varies along the length of the dispersed spectrum. Such a coating has high performance, is inexpensive, and has large fabrication tolerances. We further report on measurements of the performance of one such optic. Extensions of the concept are discussed.
引用
收藏
页码：337 / 342
页数：6
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