Modeling and observation of mid-infrared nonlocality in effective epsilon-near-zero ultranarrow coaxial apertures
With advances in nanofabrication techniques, extreme-scale nanophotonic devices with critical gap dimensions of just 1-2 nm have been realized. Plasmons in such ultranarrow gaps can exhibit nonlocal response, which was previously shown to limit the field enhancement and cause optical properties to d...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Springer Science and Business Media LLC
2020
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| Online Access: | https://hdl.handle.net/1721.1/126206 |
| _version_ | 1826205762039316480 |
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| author | Vidal-Codina, Ferran Nguyen, Ngoc Cuong Peraire, Jaime |
| author2 | Massachusetts Institute of Technology. Department of Aeronautics and Astronautics |
| author_facet | Massachusetts Institute of Technology. Department of Aeronautics and Astronautics Vidal-Codina, Ferran Nguyen, Ngoc Cuong Peraire, Jaime |
| author_sort | Vidal-Codina, Ferran |
| collection | MIT |
| description | With advances in nanofabrication techniques, extreme-scale nanophotonic devices with critical gap dimensions of just 1-2 nm have been realized. Plasmons in such ultranarrow gaps can exhibit nonlocal response, which was previously shown to limit the field enhancement and cause optical properties to deviate from the local description. Using atomic layer lithography, we create mid-infrared-resonant coaxial apertures with gap sizes as small as 1 nm and observe strong evidence of nonlocality, including spectral shifts and boosted transmittance of the cutoff epsilon-near-zero mode. Experiments are supported by full-wave 3-D nonlocal simulations performed with the hybridizable discontinuous Galerkin method. This numerical method captures atomic-scale variations of the electromagnetic fields while efficiently handling extreme-scale size mismatch. Combining atomic-layer-based fabrication techniques with fast and accurate numerical simulations provides practical routes to design and fabricate highly-efficient large-area mid-infrared sensors, antennas, and metasurfaces. |
| first_indexed | 2024-09-23T13:18:36Z |
| format | Article |
| id | mit-1721.1/126206 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T13:18:36Z |
| publishDate | 2020 |
| publisher | Springer Science and Business Media LLC |
| record_format | dspace |
| spelling | mit-1721.1/1262062022-10-01T14:27:11Z Modeling and observation of mid-infrared nonlocality in effective epsilon-near-zero ultranarrow coaxial apertures Vidal-Codina, Ferran Nguyen, Ngoc Cuong Peraire, Jaime Massachusetts Institute of Technology. Department of Aeronautics and Astronautics With advances in nanofabrication techniques, extreme-scale nanophotonic devices with critical gap dimensions of just 1-2 nm have been realized. Plasmons in such ultranarrow gaps can exhibit nonlocal response, which was previously shown to limit the field enhancement and cause optical properties to deviate from the local description. Using atomic layer lithography, we create mid-infrared-resonant coaxial apertures with gap sizes as small as 1 nm and observe strong evidence of nonlocality, including spectral shifts and boosted transmittance of the cutoff epsilon-near-zero mode. Experiments are supported by full-wave 3-D nonlocal simulations performed with the hybridizable discontinuous Galerkin method. This numerical method captures atomic-scale variations of the electromagnetic fields while efficiently handling extreme-scale size mismatch. Combining atomic-layer-based fabrication techniques with fast and accurate numerical simulations provides practical routes to design and fabricate highly-efficient large-area mid-infrared sensors, antennas, and metasurfaces. United States. Air Force. Office of Scientific Research (Grant FA9550-15-1-0276) United States. Air Force. Office of Scientific Research (Grant FA9550-16-0214) 2020-07-15T17:02:54Z 2020-07-15T17:02:54Z 2019-12 2019-10-30T17:53:17Z Article http://purl.org/eprint/type/JournalArticle 2041-1723 https://hdl.handle.net/1721.1/126206 Yoo, Daeha et al. “Modeling and observation of mid-infrared nonlocality in effective epsilon-near-zero ultranarrow coaxial apertures.” Nature Communications, vol. 10, 2019, article 4476 © 2019 The Author(s) en 10.1038/s41467-019-12038-3 Nature Communications Creative Commons Attribution 4.0 International license https://creativecommons.org/licenses/by/4.0/ application/pdf Springer Science and Business Media LLC Nature |
| spellingShingle | Vidal-Codina, Ferran Nguyen, Ngoc Cuong Peraire, Jaime Modeling and observation of mid-infrared nonlocality in effective epsilon-near-zero ultranarrow coaxial apertures |
| title | Modeling and observation of mid-infrared nonlocality in effective epsilon-near-zero ultranarrow coaxial apertures |
| title_full | Modeling and observation of mid-infrared nonlocality in effective epsilon-near-zero ultranarrow coaxial apertures |
| title_fullStr | Modeling and observation of mid-infrared nonlocality in effective epsilon-near-zero ultranarrow coaxial apertures |
| title_full_unstemmed | Modeling and observation of mid-infrared nonlocality in effective epsilon-near-zero ultranarrow coaxial apertures |
| title_short | Modeling and observation of mid-infrared nonlocality in effective epsilon-near-zero ultranarrow coaxial apertures |
| title_sort | modeling and observation of mid infrared nonlocality in effective epsilon near zero ultranarrow coaxial apertures |
| url | https://hdl.handle.net/1721.1/126206 |
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