Understanding bowtie nanoantennas excited by a localized emitter
| Autor: | Miguel Beruete, Yu Luo, Miguel Navarro-Cia, Antonio I. Fernández-Domínguez, Victor Pacheco-Peña |
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| Rok vydání: | 2017 |
| Předmět: |
0301 basic medicine
Technology Engineering bowtie nanoantenna conformal transformation Physics::Optics Conformal map 02 engineering and technology 03 medical and health sciences Optics Transmission line Common emitter Coupling Science & Technology business.industry Engineering Electrical & Electronic 021001 nanoscience & nanotechnology Purcell enhancement Dipole 030104 developmental biology Transformation (function) Excited state Telecommunications nanoantenna 0210 nano-technology business |
| Zdroj: | International Symposium of IEEE-Antennas-and-Propagation-Society / USNC/URSI National Radio Science Meeting |
| DOI: | 10.1109/apusncursinrsm.2017.8072389 |
| Popis: | A full analytical description of a bowtie nanoantenna excited by a localized emitter is presented using the transformation electromagnetic technique. By applying the conformal mapping, the bowtie nanoantenna is transformed into a periodic multi-parallel plate transmission line problem which can be easily evaluated analytically providing physical insight of the coupling between the dipole nanoemitter and the bowtie nanoantenna. The non-radiative Purcell enhancement spectrum is evaluated both analytically and numerically for different lengths, arm angles and metals, demonstrating a good agreement between both approaches. The method here presented fills the gap of the design techniques for optical nanoantennas. |
| Databáze: | OpenAIRE |
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