| DOI | Trouver le DOI : https://doi.org/10.1117/12.2040335 |
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| Auteur | Rechercher : Heggie, Tanner J.; Rechercher : Naylor, David A.; Rechercher : Gom, Brad G.; Rechercher : Bordatchev, Evgueni V.1 |
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| Affiliation | - Conseil national de recherches du Canada. Automobile et les transports de surface
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| Format | Texte, Article |
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| Conférence | New Developments in THz, RF, Millimeter-Waves, and Sub-Millimeter Waves III, February 1 2014, San Fransisco, CA |
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| Sujet | Plasmonics; bullseye lens; terahertz; micromilling; subwavelength imaging; surface plasmons |
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| Résumé | A major limitation in terahertz (THz) imaging applications is the relatively poor diffraction limited spatial resolution. A common approach to achieve subwavelength resolution is near-field imaging using a subwavelength aperture, but the low transmission efficiency through the aperture limits the sensitivity of this method. Bullseye structures, consisting of a single subwavelength circular aperture surrounded by concentric periodic corrugations, have been shown to enhance transmission through subwavelength apertures. At optical wavelengths, the fabrication of bullseye structures has been traditionally achieved by lithographic or chemical processes. Since the scale of plasmonic structures depends on the incident wavelength, precision micromilling techniques are well suited for THz applications. In this paper we describe a diamond micromilling process for the fabrication a plasmonic lenses operating at 325 GHz. Theoretical simulations are obtained using an FDTD solver and the performance of the lens is measured using a customized THz test bed. |
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| Date de publication | 2014 |
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| Langue | anglais |
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| Publications évaluées par des pairs | Oui |
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| Numéro NPARC | 21275919 |
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| Exporter la notice | Exporter en format RIS |
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| Signaler une correction | Signaler une correction (s'ouvre dans un nouvel onglet) |
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| Identificateur de l’enregistrement | 0fc8d866-f537-4616-8fad-627fa83b2602 |
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| Enregistrement créé | 2015-08-06 |
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| Enregistrement modifié | 2020-04-22 |
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