Projects per year
Abstract
Epsilon-near-zero (ENZ) materials have attracted much interest within the photonics community due to the various novel light-matter interactions that can occur in the ENZ regime. These materials display a large impedance mismatch between the ENZ material and free space, making it difficult to couple light into the medium at normal incidence. In this article, we demonstrate that enhanced light coupling into an ENZ metamaterial stack can be achieved via the design and fabrication of anti-reflection coatings, which are simple to fabricate via e-beam evaporation. The coating fabricated has been optimized not only to minimize reflection but also aims to maximize transmission — making these designs applicable to e.g. beam shaping applications. We achieve a transmission enhancement of 20% through our metamaterial over a 150 nm range and reflection minimization of 50% over a 200 nm range.
Original language | English |
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Pages (from-to) | 4088-4095 |
Number of pages | 8 |
Journal | Optical Materials Express |
Volume | 12 |
Issue number | 10 |
Early online date | 21 Sept 2022 |
DOIs | |
Publication status | Published - 1 Oct 2022 |
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Dive into the research topics of 'Anti-reflection coatings for epsilon-near-zero materials'. Together they form a unique fingerprint.Projects
- 1 Finished
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H2020 ERC CoG 2018 Amphibian: H2020 ERC CoG 2018 Amphibians
Di Falco, A. (PI)
1/02/19 → 31/01/24
Project: Standard
Datasets
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Anti-Reflection Coating for Epsilon-near-zero materials (dataset)
Schulz, S. A. (Creator), Wynne, L. (Creator), Akpan, U. B. (Creator) & Di Falco, A. (Creator), University of St Andrews, 20 Dec 2022
DOI: 10.17630/4c22ccc6-da47-4c74-8429-7a30b7b30aa6
Dataset
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