Coherent control of anisotropic SPPs in a symmetric double-layer metal/uniaxial dielectric structure
We investigate the coherent control of anisotropic surface plasmon polaritons (SPPs) in a symmetric double-layer metal/uniaxial dielectric structure. The directional anisotropy introduced by the uniaxial dielectric enables tunable SPP dispersion, absorption, and propagation characteristics through a...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Nature Research
2025
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| Online Access: | http://psasir.upm.edu.my/id/eprint/120296/ http://psasir.upm.edu.my/id/eprint/120296/1/120296.pdf |
| _version_ | 1848868156580298752 |
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| author | Khan, Jabir Sohail, Amjad Rahim, Amsyar Shafiq, Muhammad Ali, Hazrat Haddadi, Saeed |
| author_facet | Khan, Jabir Sohail, Amjad Rahim, Amsyar Shafiq, Muhammad Ali, Hazrat Haddadi, Saeed |
| author_sort | Khan, Jabir |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | We investigate the coherent control of anisotropic surface plasmon polaritons (SPPs) in a symmetric double-layer metal/uniaxial dielectric structure. The directional anisotropy introduced by the uniaxial dielectric enables tunable SPP dispersion, absorption, and propagation characteristics through an external control field. We analyze reflection and transmission spectra, dispersion relations, propagation lengths, and the scattering matrix eigenmodes. Our results reveal strong modulation of SPP wavelength and enhanced propagation length with varying control field strength and metal layer composition. Remarkably, we observe coherent perfect absorption for both symmetric and anti-symmetric modes, an effect not commonly realized in such layered anisotropic systems. This work introduces a novel platform for actively tunable nanoplasmonic devices, with potential applications in waveguiding, sensing, and plasmonic circuitry. |
| first_indexed | 2025-11-15T14:47:55Z |
| format | Article |
| id | upm-120296 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T14:47:55Z |
| publishDate | 2025 |
| publisher | Nature Research |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-1202962025-09-30T02:48:40Z http://psasir.upm.edu.my/id/eprint/120296/ Coherent control of anisotropic SPPs in a symmetric double-layer metal/uniaxial dielectric structure Khan, Jabir Sohail, Amjad Rahim, Amsyar Shafiq, Muhammad Ali, Hazrat Haddadi, Saeed We investigate the coherent control of anisotropic surface plasmon polaritons (SPPs) in a symmetric double-layer metal/uniaxial dielectric structure. The directional anisotropy introduced by the uniaxial dielectric enables tunable SPP dispersion, absorption, and propagation characteristics through an external control field. We analyze reflection and transmission spectra, dispersion relations, propagation lengths, and the scattering matrix eigenmodes. Our results reveal strong modulation of SPP wavelength and enhanced propagation length with varying control field strength and metal layer composition. Remarkably, we observe coherent perfect absorption for both symmetric and anti-symmetric modes, an effect not commonly realized in such layered anisotropic systems. This work introduces a novel platform for actively tunable nanoplasmonic devices, with potential applications in waveguiding, sensing, and plasmonic circuitry. Nature Research 2025 Article PeerReviewed text en cc_by_nc_nd_4 http://psasir.upm.edu.my/id/eprint/120296/1/120296.pdf Khan, Jabir and Sohail, Amjad and Rahim, Amsyar and Shafiq, Muhammad and Ali, Hazrat and Haddadi, Saeed (2025) Coherent control of anisotropic SPPs in a symmetric double-layer metal/uniaxial dielectric structure. Scientific Reports, 15 (1). art. no. 29809. pp. 1-12. ISSN 2045-2322 https://www.nature.com/articles/s41598-025-12270-6?error=cookies_not_supported&code=0247ba40-bce6-4ed2-bb73-2e26909a7d8e 10.1038/s41598-025-12270-6 |
| spellingShingle | Khan, Jabir Sohail, Amjad Rahim, Amsyar Shafiq, Muhammad Ali, Hazrat Haddadi, Saeed Coherent control of anisotropic SPPs in a symmetric double-layer metal/uniaxial dielectric structure |
| title | Coherent control of anisotropic SPPs in a symmetric double-layer metal/uniaxial dielectric structure |
| title_full | Coherent control of anisotropic SPPs in a symmetric double-layer metal/uniaxial dielectric structure |
| title_fullStr | Coherent control of anisotropic SPPs in a symmetric double-layer metal/uniaxial dielectric structure |
| title_full_unstemmed | Coherent control of anisotropic SPPs in a symmetric double-layer metal/uniaxial dielectric structure |
| title_short | Coherent control of anisotropic SPPs in a symmetric double-layer metal/uniaxial dielectric structure |
| title_sort | coherent control of anisotropic spps in a symmetric double-layer metal/uniaxial dielectric structure |
| url | http://psasir.upm.edu.my/id/eprint/120296/ http://psasir.upm.edu.my/id/eprint/120296/ http://psasir.upm.edu.my/id/eprint/120296/ http://psasir.upm.edu.my/id/eprint/120296/1/120296.pdf |