Optimized two-layer motheye structures for MgAl₂O₄ spinel ceramic windows

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https://opg.optica.org/osac/fulltext.cfm?uri=osac-4-8-2143&id=453635

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https://doi.org/10.1364/OSAC.428319
 http://hdl.handle.net/11603/28061

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UMBC Computer Science and Electrical Engineering Department
UMBC Faculty Collection

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Author/Creator ORCID

https://orcid.org/0000-0002-1821-773X
 https://orcid.org/0000-0003-0269-8433
 https://orcid.org/0000-0002-5002-1657

Date

2021-07-22

Type of Work

journal articles
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Citation of Original Publication

Chaoran Tu, Jonathan Hu, Curtis R. Menyuk, Thomas F. Carruthers, L. Brandon Shaw, Lynda E. Busse, and Jasbinder S. Sanghera, "Optimized two-layer motheye structures for MgAl₂O₄ spinel ceramic windows," OSA Continuum 4, 2143-2153 (2021). https://doi.org/10.1364/OSAC.428319

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This work was written as part of one of the author's official duties as an Employee of the United States Government and is therefore a work of the United States Government. In accordance with 17 U.S.C. 105, no copyright protection is available for such works under U.S. Law.
Public Domain Mark 1.0

Subjects

UMBC High Performance Computing Facility (HPCF)

Abstract

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 μm and 5.0 μm.