Experimental and Theoretical Study of Optical Antennas Formed from ZnO Nanorods Coated with a Thin Silver Film
| Autor: | E. V. Golovacheva, V. E. Kaydashev, N. V. Lyanguzov, A. M. Lerer, E. A. Tsvetyanskii, E. M. Kaidashev |
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| Rok vydání: | 2017 |
| Předmět: |
010302 applied physics
Diffraction Radiation Materials science business.industry Physics::Optics Resonance 02 engineering and technology Substrate (electronics) Dielectric Sputter deposition 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences Electronic Optical and Magnetic Materials Condensed Matter::Materials Science Surface wave 0103 physical sciences Optoelectronics Nanorod Electrical and Electronic Engineering 0210 nano-technology business Diffraction grating |
| Zdroj: | Journal of Communications Technology and Electronics. 62:1328-1335 |
| ISSN: | 1555-6557 1064-2269 |
| DOI: | 10.1134/s1064226917110055 |
| Popis: | A new design of an optical antenna formed from a ZnO nanorod coated with a thin metallic film is proposed. Arrays of ZnO nanorods coated with a thin silver film and highly oriented perpendicular to the substrate have been fabricated using carbothermal synthesis and magnetron sputtering. The problems of diffraction of electromagnetic waves by a single metal–dielectric nanooscillator located at the interface between dielectrics and on a 2D periodic array have been solved. Calculated electrodynamic characteristics of the optical nanoantennas of different lengths have been compared with experimental data. A new optical metal–dielectric diffraction grating absorbing almost 100% of the energy falling onto it at the resonance of the surface wave propagating along the metal (solid state plasma)/dielectric interface has been theoretically investigated. |
| Databáze: | OpenAIRE |
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