Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Ultra-thin sputter-deposited infrared rugate mirror for enhancing solar-to-thermal energy conversion

Abstract

A dielectric mirror with high infrared reflection and high visible transmission, based on an easily fabricated stepped index rugate filter structure, is presented. Its fabrication involves sputtering depositions, using only two targets, to make five different material compositions. The ultra-wide reflection band is tunable in both position and width, adapting the thickness of the layers and eventually introducing chirped layers. When applied to evacuated solar thermal devices, efficiency improvements of up to 30% can be achieved, making this mirror an attractive solution for reducing radiative losses through the cold-side photon recycling mechanism.

© 2022 Optical Society of America

Full Article  |  PDF Article
More Like This
Ultra-thin mid-infrared silicon grating coupler

Rongxiang Guo, Haoran Gao, Tiegen Liu, and Zhenzhou Cheng
Opt. Lett. 47(5) 1226-1229 (2022)

Visible to near-infrared nearly perfect absorption from alternate silica and chromium layers deposited by magnetron sputtering

Jiaxin Wang, Jiannan Dong, Yige Cheng, Zhenlong Xie, and Yihang Chen
Opt. Lett. 46(18) 4582-4584 (2021)

Ultra-lightweight mirrors with high solar reflectivity and high infrared emissivity for sun-facing radiative thermal management in space

Samuel Loke, Ali Naqavi, Emily Warmann, Pilar Espinet-Gonzalez, Nina Vaidya, Michael Kelzenberg, and Harry A. Atwater
Opt. Express 30(16) 28268-28278 (2022)

Data availability

Data underlying the results presented in this paper are not publicly available at this time but may be obtained from the authors upon reasonable request.

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (6)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Tables (1)

You do not have subscription access to this journal. Article tables are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Equations (3)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved