Magnetic plasmons induced in a dielectric-metal heterostructure by optical magnetism
We investigate numerically and experimentally the optical properties of the transverse electric (TE) waves supported by a dielectric-metal heterostructure. They are considered as the counterparts of the surface plasmon polaritons (i.e., the transverse magnetic (TM) waves) which have been extensively...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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De Gruyter
2021-07-01
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| Series: | Nanophotonics |
| Subjects: | |
| Online Access: | https://doi.org/10.1515/nanoph-2021-0146 |
| _version_ | 1818365745314136064 |
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| author | Li Shulei Zhou Lidan Panmai Mingcheng Xiang Jin Lan Sheng |
| author_facet | Li Shulei Zhou Lidan Panmai Mingcheng Xiang Jin Lan Sheng |
| author_sort | Li Shulei |
| collection | DOAJ |
| description | We investigate numerically and experimentally the optical properties of the transverse electric (TE) waves supported by a dielectric-metal heterostructure. They are considered as the counterparts of the surface plasmon polaritons (i.e., the transverse magnetic (TM) waves) which have been extensively studied in the last several decades. We show that TE waves with resonant wavelengths in the visible light spectrum can be excited in a dielectric-metal heterostructure when the optical thickness of the dielectric layer exceeds a critical value. We reveal that the electric and magnetic field distributions for the TE waves are spatially separated, leading to higher quality factors or narrow linewidths as compared with the TM waves. We calculate the thickness, refractive index and incidence angle dispersion relations for the TE waves supported by a dielectric-metal heterostructure. In experiments, we observe optical resonances with linewidths as narrow as ∼10 nm in the reflection or scattering spectra of the TE waves excited in a Si3N4/Ag heterostructure. Finally, we demonstrate the applications of the lowest-order TE wave excited in a Si3N4/Ag heterostructure in optical display with good chromaticity and optical sensing with high sensitivity. |
| first_indexed | 2024-12-13T22:25:09Z |
| format | Article |
| id | doaj.art-0a357c0067d344cc947c7544feaeda99 |
| institution | Directory Open Access Journal |
| issn | 2192-8606 2192-8614 |
| language | English |
| last_indexed | 2024-12-13T22:25:09Z |
| publishDate | 2021-07-01 |
| publisher | De Gruyter |
| record_format | Article |
| series | Nanophotonics |
| spelling | doaj.art-0a357c0067d344cc947c7544feaeda992022-12-21T23:29:15ZengDe GruyterNanophotonics2192-86062192-86142021-07-0110102639264910.1515/nanoph-2021-0146Magnetic plasmons induced in a dielectric-metal heterostructure by optical magnetismLi Shulei0Zhou Lidan1Panmai Mingcheng2Xiang Jin3Lan Sheng4Guangdong Provincial Key Laboratory of Nanophotonic Functional Materials and Devices, School of Information and Optoelectronic Science and Engineering, South China Normal University, Guangzhou510006, ChinaGuangdong Provincial Key Laboratory of Nanophotonic Functional Materials and Devices, School of Information and Optoelectronic Science and Engineering, South China Normal University, Guangzhou510006, ChinaGuangdong Provincial Key Laboratory of Nanophotonic Functional Materials and Devices, School of Information and Optoelectronic Science and Engineering, South China Normal University, Guangzhou510006, ChinaDepartment of Electrical and Computer Engineering, University of Wisconsin–Madison, Madison, USAGuangdong Provincial Key Laboratory of Nanophotonic Functional Materials and Devices, School of Information and Optoelectronic Science and Engineering, South China Normal University, Guangzhou510006, ChinaWe investigate numerically and experimentally the optical properties of the transverse electric (TE) waves supported by a dielectric-metal heterostructure. They are considered as the counterparts of the surface plasmon polaritons (i.e., the transverse magnetic (TM) waves) which have been extensively studied in the last several decades. We show that TE waves with resonant wavelengths in the visible light spectrum can be excited in a dielectric-metal heterostructure when the optical thickness of the dielectric layer exceeds a critical value. We reveal that the electric and magnetic field distributions for the TE waves are spatially separated, leading to higher quality factors or narrow linewidths as compared with the TM waves. We calculate the thickness, refractive index and incidence angle dispersion relations for the TE waves supported by a dielectric-metal heterostructure. In experiments, we observe optical resonances with linewidths as narrow as ∼10 nm in the reflection or scattering spectra of the TE waves excited in a Si3N4/Ag heterostructure. Finally, we demonstrate the applications of the lowest-order TE wave excited in a Si3N4/Ag heterostructure in optical display with good chromaticity and optical sensing with high sensitivity.https://doi.org/10.1515/nanoph-2021-0146dielectric-metal heterostructureoptical displayoptical sensingsurface plasmon polaritontransverse electric wavetransverse magnetic wave |
| spellingShingle | Li Shulei Zhou Lidan Panmai Mingcheng Xiang Jin Lan Sheng Magnetic plasmons induced in a dielectric-metal heterostructure by optical magnetism Nanophotonics dielectric-metal heterostructure optical display optical sensing surface plasmon polariton transverse electric wave transverse magnetic wave |
| title | Magnetic plasmons induced in a dielectric-metal heterostructure by optical magnetism |
| title_full | Magnetic plasmons induced in a dielectric-metal heterostructure by optical magnetism |
| title_fullStr | Magnetic plasmons induced in a dielectric-metal heterostructure by optical magnetism |
| title_full_unstemmed | Magnetic plasmons induced in a dielectric-metal heterostructure by optical magnetism |
| title_short | Magnetic plasmons induced in a dielectric-metal heterostructure by optical magnetism |
| title_sort | magnetic plasmons induced in a dielectric metal heterostructure by optical magnetism |
| topic | dielectric-metal heterostructure optical display optical sensing surface plasmon polariton transverse electric wave transverse magnetic wave |
| url | https://doi.org/10.1515/nanoph-2021-0146 |
| work_keys_str_mv | AT lishulei magneticplasmonsinducedinadielectricmetalheterostructurebyopticalmagnetism AT zhoulidan magneticplasmonsinducedinadielectricmetalheterostructurebyopticalmagnetism AT panmaimingcheng magneticplasmonsinducedinadielectricmetalheterostructurebyopticalmagnetism AT xiangjin magneticplasmonsinducedinadielectricmetalheterostructurebyopticalmagnetism AT lansheng magneticplasmonsinducedinadielectricmetalheterostructurebyopticalmagnetism |