Narrowband and spectrally robust thermal emission from metallic thin films on top of epsilon-near-zero substrates
| dc.contributor.author | Navajas Hernández, David | |
| dc.contributor.author | Pérez Escudero, José Manuel | |
| dc.contributor.author | Liberal Olleta, Íñigo | |
| dc.contributor.department | Ingeniería Eléctrica, Electrónica y de Comunicación | es_ES |
| dc.contributor.department | Institute of Smart Cities - ISC | en |
| dc.contributor.department | Ingeniaritza Elektrikoa, Elektronikoaren eta Telekomunikazio Ingeniaritzaren | eu |
| dc.date.accessioned | 2023-05-26T09:47:32Z | |
| dc.date.available | 2023-05-26T09:47:32Z | |
| dc.date.issued | 2022 | |
| dc.date.updated | 2023-05-26T09:29:54Z | |
| dc.description.abstract | The absorption and emission of infrared radiation by ultra-thin metallic films is a key element in several thermal engineering applications such as heat and energy management, and thermal camouflage. However, ultra-thin metallic films are broadband and low-efficiency emitters. Here, we demonstrate numerically and experimentally that metallic films placed on top of epsilon-near-zero (ENZ) substrates become narrowband and efficient thermal emitters. Our experiments show that ENZ-based emitters feature a narrow linewidth whose frequency positioning is robust against variations in the geometry of the system and the observation angle. Moreover, since ENZ emitters are based on the material properties of the substrate, no nanofabrication processes are needed, opening the pathway towards widefield and large-scale applications. | en |
| dc.format.mimetype | application/pdf | en |
| dc.identifier.citation | Navajas, D., Perez-Escudero, J. M., & Liberal, I. (2022). Narrowband and spectrally robust thermal emission from metallic thin films on top of epsilon-near-zero substrates. 2022 Sixteenth International Congress on Artificial Materials for Novel Wave Phenomena (Metamaterials), 323-325. https://doi.org/10.1109/Metamaterials54993.2022.992077 | en |
| dc.identifier.doi | 10.1109/Metamaterials54993.2022.9920777 | |
| dc.identifier.isbn | 978-1-6654-6584-7 | |
| dc.identifier.uri | https://academica-e.unavarra.es/handle/2454/45310 | |
| dc.language.iso | eng | en |
| dc.publisher | IEEE | en |
| dc.relation.ispartof | 2022 Sixteenth International Congress on Artificial Materials for Novel Wave Phenomena (Metamaterials) IEEE; 2022. p.323-325 978-1-6654-6584-7 | en |
| dc.relation.publisherversion | https://doi.org/10.1109/Metamaterials54993.2022.9920777 | |
| dc.rights | © 2022 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other work. | en |
| dc.rights.accessRights | info:eu-repo/semantics/openAccess | |
| dc.subject | Geometry | en |
| dc.subject | Spectroscopy | en |
| dc.subject | Nanofabrication | en |
| dc.subject | Silicon carbide | en |
| dc.subject | Films | en |
| dc.subject | Thermal engineering | en |
| dc.subject | Prototypes | en |
| dc.title | Narrowband and spectrally robust thermal emission from metallic thin films on top of epsilon-near-zero substrates | en |
| dc.type | info:eu-repo/semantics/conferenceObject | |
| dc.type.version | info:eu-repo/semantics/acceptedVersion | |
| dspace.entity.type | Publication | |
| relation.isAuthorOfPublication | 5eab4a17-b7d4-43c9-b388-4cd49b64f0d1 | |
| relation.isAuthorOfPublication | 59d1e613-d28a-4a04-a2d3-23bd353c76d1 | |
| relation.isAuthorOfPublication | 781ff0dc-60db-4bd0-bef0-49e27c76b542 | |
| relation.isAuthorOfPublication.latestForDiscovery | 5eab4a17-b7d4-43c9-b388-4cd49b64f0d1 |