Dispersion curve engineering for automated topology design of a unit cell in spoof surface plasmon polaritons
Abstract In this paper, an automatic design method is proposed for unit cell in spoof surface plasmon polaritons (SSPP) with an almost arbitrary dispersion curve. In this method, the pixel configuration is considered for the unit cell and, by using the binary particle swarm optimization method, the...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2024-02-01
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| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-024-52842-6 |
| _version_ | 1827150834895421440 |
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| author | Salma Mirhadi Zahra Javidi Nader Komjani |
| author_facet | Salma Mirhadi Zahra Javidi Nader Komjani |
| author_sort | Salma Mirhadi |
| collection | DOAJ |
| description | Abstract In this paper, an automatic design method is proposed for unit cell in spoof surface plasmon polaritons (SSPP) with an almost arbitrary dispersion curve. In this method, the pixel configuration is considered for the unit cell and, by using the binary particle swarm optimization method, the proper topology of the unit cell is explored so as to reach the target dispersion curve. Unlike the traditional method of controlling the dispersion curve, which is performed based on changing the geometric parameters of the predetermined unit cell, in this method, there is no need to know the shape of the unit cell, and the dispersion curve of the modes of SSPP unit cell can be controlled independently with more freedom. Two unit cell samples are designed in order to show the efficiency of the procedure. In the first sample, the dispersion curve is designed to have the lowest asymptotic frequency; in the second sample, the dispersion curve of the second mode is controlled independently from the first mode and is changed arbitrarily. SSPP transmission lines which are related to the unit cells of the two samples are designed, and it is demonstrated that measurement and simulation results are greatly in line with each other. |
| first_indexed | 2024-03-07T15:02:42Z |
| format | Article |
| id | doaj.art-c9a543bbb4814826b92d9b06df75780e |
| institution | Directory Open Access Journal |
| issn | 2045-2322 |
| language | English |
| last_indexed | 2025-03-20T21:40:23Z |
| publishDate | 2024-02-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj.art-c9a543bbb4814826b92d9b06df75780e2024-08-11T11:17:32ZengNature PortfolioScientific Reports2045-23222024-02-0114111210.1038/s41598-024-52842-6Dispersion curve engineering for automated topology design of a unit cell in spoof surface plasmon polaritonsSalma Mirhadi0Zahra Javidi1Nader Komjani2Department of Electrical and Computer Engineering, Shariaty College, Technical and Vocational UniversityDepartment of Electrical Engineering, Iran University of Science and TechnologyDepartment of Electrical Engineering, Iran University of Science and TechnologyAbstract In this paper, an automatic design method is proposed for unit cell in spoof surface plasmon polaritons (SSPP) with an almost arbitrary dispersion curve. In this method, the pixel configuration is considered for the unit cell and, by using the binary particle swarm optimization method, the proper topology of the unit cell is explored so as to reach the target dispersion curve. Unlike the traditional method of controlling the dispersion curve, which is performed based on changing the geometric parameters of the predetermined unit cell, in this method, there is no need to know the shape of the unit cell, and the dispersion curve of the modes of SSPP unit cell can be controlled independently with more freedom. Two unit cell samples are designed in order to show the efficiency of the procedure. In the first sample, the dispersion curve is designed to have the lowest asymptotic frequency; in the second sample, the dispersion curve of the second mode is controlled independently from the first mode and is changed arbitrarily. SSPP transmission lines which are related to the unit cells of the two samples are designed, and it is demonstrated that measurement and simulation results are greatly in line with each other.https://doi.org/10.1038/s41598-024-52842-6 |
| spellingShingle | Salma Mirhadi Zahra Javidi Nader Komjani Dispersion curve engineering for automated topology design of a unit cell in spoof surface plasmon polaritons Scientific Reports |
| title | Dispersion curve engineering for automated topology design of a unit cell in spoof surface plasmon polaritons |
| title_full | Dispersion curve engineering for automated topology design of a unit cell in spoof surface plasmon polaritons |
| title_fullStr | Dispersion curve engineering for automated topology design of a unit cell in spoof surface plasmon polaritons |
| title_full_unstemmed | Dispersion curve engineering for automated topology design of a unit cell in spoof surface plasmon polaritons |
| title_short | Dispersion curve engineering for automated topology design of a unit cell in spoof surface plasmon polaritons |
| title_sort | dispersion curve engineering for automated topology design of a unit cell in spoof surface plasmon polaritons |
| url | https://doi.org/10.1038/s41598-024-52842-6 |
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