Limits of Kirchhoff’s laws in plasmonics
Please always quote using this URN: urn:nbn:de:bvb:20-opus-176080
- The validity of Kirchhoff’s laws in plasmonic nanocircuitry is investigated by studying a junction of plasmonic two-wire transmission lines. We find that Kirchhoff’s laws are valid for sufficiently small values of a phenomenological parameter κ relating the geometrical parameters of the transmission line with the effective wavelength of the guided mode. Beyond such regime, for large values of the phenomenological parameter, increasing deviations occur and the equivalent impedance description (Kirchhoff’s laws) can only provide rough, butThe validity of Kirchhoff’s laws in plasmonic nanocircuitry is investigated by studying a junction of plasmonic two-wire transmission lines. We find that Kirchhoff’s laws are valid for sufficiently small values of a phenomenological parameter κ relating the geometrical parameters of the transmission line with the effective wavelength of the guided mode. Beyond such regime, for large values of the phenomenological parameter, increasing deviations occur and the equivalent impedance description (Kirchhoff’s laws) can only provide rough, but nevertheless useful, guidelines for the design of more complex plasmonic circuitry. As an example we investigate a system composed of a two-wire transmission line and a nanoantenna as the load. By addition of a parallel stub designed according to Kirchhoff’s laws we achieve maximum signal transfer to the nanoantenna.…
Author: | Gary Razinskas, Paolo Biagioni, Bert HechtORCiD |
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URN: | urn:nbn:de:bvb:20-opus-176080 |
Document Type: | Journal article |
Faculties: | Fakultät für Physik und Astronomie / Physikalisches Institut |
Language: | English |
Parent Title (English): | Scientific Reports |
Year of Completion: | 2018 |
Volume: | 8 |
Issue: | 1921 |
Source: | Scientific Reports (2018) 8:1921. DOI: 10.1038/s41598-018-20239-x |
DOI: | https://doi.org/10.1038/s41598-018-20239-x |
Dewey Decimal Classification: | 5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik |
Tag: | Kirchhoff's law; integrated optics; nanowires; plasmonics |
Release Date: | 2019/02/22 |
Collections: | Open-Access-Publikationsfonds / Förderzeitraum 2018 |
Licence (German): | CC BY: Creative-Commons-Lizenz: Namensnennung 4.0 International |