Plasmonic Anapole Mode in a Mid-Infrared Metasurface with Improved Quality Factor.
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| Title: | Plasmonic Anapole Mode in a Mid-Infrared Metasurface with Improved Quality Factor. |
|---|---|
| Authors: | Xing, Li1 (AUTHOR), Wulan, Qiqige1 (AUTHOR), Yu, Jiachen1 (AUTHOR), Liu, Zhijun1 (AUTHOR) liuzhijun@uestc.edu.cn |
| Source: | Plasmonics. Jun2025, Vol. 20 Issue 6, p3733-3740. 8p. |
| Subjects: | Optical engineering, Physical sciences, Resonators, Plasmonics, Resonance |
| Abstract: | Anapole presents a promising scheme for obtaining both high quality factor and large near-field enhancement for nanophotonic applications. Due to ohmic loss in metals and parasitic radiative moments, resonant properties of anapole mode are presently still far from the ideal nonradiant mode behaviors especially at visible and infrared frequencies. In this work, we design and demonstrate a plasmonic anapole mode with improved quality (Q) factor in the mid-infrared. By fabricating a metasurface consisting of a metallic split ring resonator array, we measured an anapole resonance at 37.87 THz with a Q factor of 35, which is more than two times of prior reported values in anapole metamaterials at infrared and visible frequencies. The improvement originated from suppression of parasitic magnetic quadrupole induced in the metasurface. Our measured narrowband anapole mode is switchable to a broadband electric dipolar mode by varying the incident polarization. In addition, our measured Q factor of the anapole mode is about one half of the theoretical value, i.e., 88. Spatial size inhomogeneity was shown to be a major factor accounting for the discrepancy. Our findings reveal great potential for improving the resonant properties of anapole, which could be beneficial for metamaterial applications in sensing, infrared camouflaging, and wavelength-selective devices, etc. [ABSTRACT FROM AUTHOR] |
| Copyright of Plasmonics is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
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| Header | DbId: egs DbLabel: Engineering Source An: 185858578 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Plasmonic Anapole Mode in a Mid-Infrared Metasurface with Improved Quality Factor. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Xing%2C+Li%22">Xing, Li</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Wulan%2C+Qiqige%22">Wulan, Qiqige</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Yu%2C+Jiachen%22">Yu, Jiachen</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Liu%2C+Zhijun%22">Liu, Zhijun</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> liuzhijun@uestc.edu.cn</i> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Plasmonics%22">Plasmonics</searchLink>. Jun2025, Vol. 20 Issue 6, p3733-3740. 8p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Optical+engineering%22">Optical engineering</searchLink><br /><searchLink fieldCode="DE" term="%22Physical+sciences%22">Physical sciences</searchLink><br /><searchLink fieldCode="DE" term="%22Resonators%22">Resonators</searchLink><br /><searchLink fieldCode="DE" term="%22Plasmonics%22">Plasmonics</searchLink><br /><searchLink fieldCode="DE" term="%22Resonance%22">Resonance</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Anapole presents a promising scheme for obtaining both high quality factor and large near-field enhancement for nanophotonic applications. Due to ohmic loss in metals and parasitic radiative moments, resonant properties of anapole mode are presently still far from the ideal nonradiant mode behaviors especially at visible and infrared frequencies. In this work, we design and demonstrate a plasmonic anapole mode with improved quality (Q) factor in the mid-infrared. By fabricating a metasurface consisting of a metallic split ring resonator array, we measured an anapole resonance at 37.87 THz with a Q factor of 35, which is more than two times of prior reported values in anapole metamaterials at infrared and visible frequencies. The improvement originated from suppression of parasitic magnetic quadrupole induced in the metasurface. Our measured narrowband anapole mode is switchable to a broadband electric dipolar mode by varying the incident polarization. In addition, our measured Q factor of the anapole mode is about one half of the theoretical value, i.e., 88. Spatial size inhomogeneity was shown to be a major factor accounting for the discrepancy. Our findings reveal great potential for improving the resonant properties of anapole, which could be beneficial for metamaterial applications in sensing, infrared camouflaging, and wavelength-selective devices, etc. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Plasmonics is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1007/s11468-024-02594-w Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 8 StartPage: 3733 Subjects: – SubjectFull: Optical engineering Type: general – SubjectFull: Physical sciences Type: general – SubjectFull: Resonators Type: general – SubjectFull: Plasmonics Type: general – SubjectFull: Resonance Type: general Titles: – TitleFull: Plasmonic Anapole Mode in a Mid-Infrared Metasurface with Improved Quality Factor. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Xing, Li – PersonEntity: Name: NameFull: Wulan, Qiqige – PersonEntity: Name: NameFull: Yu, Jiachen – PersonEntity: Name: NameFull: Liu, Zhijun IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 06 Text: Jun2025 Type: published Y: 2025 Identifiers: – Type: issn-print Value: 15571955 Numbering: – Type: volume Value: 20 – Type: issue Value: 6 Titles: – TitleFull: Plasmonics Type: main |
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