Optimized two-layer motheye structures for MgAl2O4 spinel ceramic windows

被引：4
|
作者：
Tu, Chaoran [1 ]
Hu, Jonathan [2 ]
Menyuk, Curtis R. [1 ]
Carruthers, Thomas F. [1 ]
Shaw, L. Brandon [3 ]
Busse, Lynda E. [3 ]
Sanghera, Jasbinder S. [3 ]
机构：
[1] Univ Maryland Baltimore Cty, Dept Comp Sci & Elect Engn, Baltimore, MD 21250 USA
[2] Baylor Univ, Dept Elect & Comp Engn, Waco, TX 76798 USA
[3] US Naval Res Lab, 4555 Overlook Ave SW, Washington, DC 20375 USA
来源：
OSA CONTINUUM | 2021年 / 4卷 / 08期
关键词：
ANTIREFLECTIVE SURFACE-STRUCTURES; BROAD-BAND ANTIREFLECTION; SILICON; COATINGS; FABRICATION; REFLECTION; FILM;
D O I：
10.1364/OSAC.428319
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We computationally study two-layer motheye nanostructures fabricated on MgAl2O4 spinel ceramic windows. We investigated the parameters of the structure, including height, width, and shape, in order to optimize its power transmission efficiency over a broad bandwidth. We found a two-layer motheye structure in which the cones of the upper structure have a concave shape that can theoretically achieve more than 99.8% transmission at normal incidence in the wavelength range between 0.4 mu m and 5.0 mu m. (C) 2021 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
引用
收藏
页码：2143 / 2153
页数：11
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