dorsal/arxiv
View SchemaEnhanced surface plasmon resonance absorption in metal-dielectric-metal layered microspheres
| Authors | Keisuke Hasegawa, Charles A. Rohde, Miriam Deutsch |
|---|---|
| Categories | |
| ArXiv ID | physics/0511246 |
| URL | https://arxiv.org/abs/physics/0511246 |
| DOI | 10.1364/OL.31.001136 |
| Journal | Opt. Lett. 31, 1136 (2006) |
Abstract
We present a theoretical study of the dispersion relation of surface plasmon resonances of mesoscopic metal-dielectric-metal microspheres. By analyzing the solutions to Maxwell's equations, we obtain a simple geometric condition for which the system exhibits a band of surface plasmon modes whose resonant frequencies are weakly dependent on the multipole number. Using a modified Mie calculation, we find that a large number of modes belonging to this flat-dispersion band can be excited simultaneously by a plane wave, thus enhancing the absorption cross-section. We demonstrate that the enhanced absorption peak of the sphere is geometrically tunable over the entire visible range.
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"abstract": "We present a theoretical study of the dispersion relation of surface plasmon\nresonances of mesoscopic metal-dielectric-metal microspheres. By analyzing the\nsolutions to Maxwell\u0027s equations, we obtain a simple geometric condition for\nwhich the system exhibits a band of surface plasmon modes whose resonant\nfrequencies are weakly dependent on the multipole number. Using a modified Mie\ncalculation, we find that a large number of modes belonging to this\nflat-dispersion band can be excited simultaneously by a plane wave, thus\nenhancing the absorption cross-section. We demonstrate that the enhanced\nabsorption peak of the sphere is geometrically tunable over the entire visible\nrange.",
"arxiv_id": "physics/0511246",
"authors": [
"Keisuke Hasegawa",
"Charles A. Rohde",
"Miriam Deutsch"
],
"categories": [
"physics.optics"
],
"doi": "10.1364/OL.31.001136",
"journal_ref": "Opt. Lett. 31, 1136 (2006)",
"title": "Enhanced surface plasmon resonance absorption in metal-dielectric-metal layered microspheres",
"url": "https://arxiv.org/abs/physics/0511246"
},
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