Influence of the Substrate to the LSP Coupling Wavelength and Strength
Abstract Three kinds of typical structures, hemi-/spherical nanoparticles/nanoparticle dimers on the substrate and spherical nanoparticles/nanoparticle dimers half-buried into the substrate, are used for FDTD simulation to theoretically discuss the influence of the substrate to the localized surface...
| Main Authors: | , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
SpringerOpen
2018-09-01
|
| Series: | Nanoscale Research Letters |
| Subjects: | |
| Online Access: | http://link.springer.com/article/10.1186/s11671-018-2691-2 |
| _version_ | 1797708018194841600 |
|---|---|
| author | Jiawei Liao Li Ji Jin Zhang Na Gao Penggang Li Kai Huang Edward T. Yu Junyong Kang |
| author_facet | Jiawei Liao Li Ji Jin Zhang Na Gao Penggang Li Kai Huang Edward T. Yu Junyong Kang |
| author_sort | Jiawei Liao |
| collection | DOAJ |
| description | Abstract Three kinds of typical structures, hemi-/spherical nanoparticles/nanoparticle dimers on the substrate and spherical nanoparticles/nanoparticle dimers half-buried into the substrate, are used for FDTD simulation to theoretically discuss the influence of the substrate to the localized surface plasmon (LSP) coupling when the metal nanoparticles/nanoparticle dimers are locating near a substrate. Simulated results show that the dependencies between the LSP coupling wavelength and the refractive index of the substrate for different structures are not the same, which can be attributed to the different polarization field distributions of LSPs. When light is incident from different directions, the LSP coupling strength are not the same as well and the ratios of the scattering peak intensities depend on the position of the metal nanoparticles or nanoparticle dimers. These phenomenon can be explained by the difference of the local driving electric field intensities which is modulated by the interface between the air and the substrate. |
| first_indexed | 2024-03-12T06:16:09Z |
| format | Article |
| id | doaj.art-cc2723537e8b4c4b92a814018a465a1e |
| institution | Directory Open Access Journal |
| issn | 1931-7573 1556-276X |
| language | English |
| last_indexed | 2024-03-12T06:16:09Z |
| publishDate | 2018-09-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Nanoscale Research Letters |
| spelling | doaj.art-cc2723537e8b4c4b92a814018a465a1e2023-09-03T02:37:58ZengSpringerOpenNanoscale Research Letters1931-75731556-276X2018-09-0113111110.1186/s11671-018-2691-2Influence of the Substrate to the LSP Coupling Wavelength and StrengthJiawei Liao0Li Ji1Jin Zhang2Na Gao3Penggang Li4Kai Huang5Edward T. Yu6Junyong Kang7Fujian Provincial Key Laboratory of Semiconductors and Applications, Collaborative Innovation Center for Optoelectronic Semiconductors and Efficient Devices, Department of Physics, Xiamen UniversityDepartment of Electrical and Computer Engineering, Microelectronic Research Center, The University of Texas at AustinInspection and Quarantine Technology Center, Xiamen Entry-Exit Inspection and Quarantine Bureau of the People’s Republic of ChinaFujian Provincial Key Laboratory of Semiconductors and Applications, Collaborative Innovation Center for Optoelectronic Semiconductors and Efficient Devices, Department of Physics, Xiamen UniversityFujian Provincial Key Laboratory of Semiconductors and Applications, Collaborative Innovation Center for Optoelectronic Semiconductors and Efficient Devices, Department of Physics, Xiamen UniversityFujian Provincial Key Laboratory of Semiconductors and Applications, Collaborative Innovation Center for Optoelectronic Semiconductors and Efficient Devices, Department of Physics, Xiamen UniversityDepartment of Electrical and Computer Engineering, Microelectronic Research Center, The University of Texas at AustinFujian Provincial Key Laboratory of Semiconductors and Applications, Collaborative Innovation Center for Optoelectronic Semiconductors and Efficient Devices, Department of Physics, Xiamen UniversityAbstract Three kinds of typical structures, hemi-/spherical nanoparticles/nanoparticle dimers on the substrate and spherical nanoparticles/nanoparticle dimers half-buried into the substrate, are used for FDTD simulation to theoretically discuss the influence of the substrate to the localized surface plasmon (LSP) coupling when the metal nanoparticles/nanoparticle dimers are locating near a substrate. Simulated results show that the dependencies between the LSP coupling wavelength and the refractive index of the substrate for different structures are not the same, which can be attributed to the different polarization field distributions of LSPs. When light is incident from different directions, the LSP coupling strength are not the same as well and the ratios of the scattering peak intensities depend on the position of the metal nanoparticles or nanoparticle dimers. These phenomenon can be explained by the difference of the local driving electric field intensities which is modulated by the interface between the air and the substrate.http://link.springer.com/article/10.1186/s11671-018-2691-2Localized surface plasmonDielectric interfaceResonance wavelengthCoupling strength |
| spellingShingle | Jiawei Liao Li Ji Jin Zhang Na Gao Penggang Li Kai Huang Edward T. Yu Junyong Kang Influence of the Substrate to the LSP Coupling Wavelength and Strength Nanoscale Research Letters Localized surface plasmon Dielectric interface Resonance wavelength Coupling strength |
| title | Influence of the Substrate to the LSP Coupling Wavelength and Strength |
| title_full | Influence of the Substrate to the LSP Coupling Wavelength and Strength |
| title_fullStr | Influence of the Substrate to the LSP Coupling Wavelength and Strength |
| title_full_unstemmed | Influence of the Substrate to the LSP Coupling Wavelength and Strength |
| title_short | Influence of the Substrate to the LSP Coupling Wavelength and Strength |
| title_sort | influence of the substrate to the lsp coupling wavelength and strength |
| topic | Localized surface plasmon Dielectric interface Resonance wavelength Coupling strength |
| url | http://link.springer.com/article/10.1186/s11671-018-2691-2 |
| work_keys_str_mv | AT jiaweiliao influenceofthesubstratetothelspcouplingwavelengthandstrength AT liji influenceofthesubstratetothelspcouplingwavelengthandstrength AT jinzhang influenceofthesubstratetothelspcouplingwavelengthandstrength AT nagao influenceofthesubstratetothelspcouplingwavelengthandstrength AT penggangli influenceofthesubstratetothelspcouplingwavelengthandstrength AT kaihuang influenceofthesubstratetothelspcouplingwavelengthandstrength AT edwardtyu influenceofthesubstratetothelspcouplingwavelengthandstrength AT junyongkang influenceofthesubstratetothelspcouplingwavelengthandstrength |