| CONDENSED MATTER: STRUCTURE, MECHANICAL AND THERMAL PROPERTIES |
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Plasmonic Nanostructured Electromagnetic Materials |
| H. Sadeghi**, H. Khalili, M. Goodarzi |
| Department of Physics, Faculty of Science, Arak University, Arak 8349-8-38156, Iran |
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| Cite this article: |
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H. Sadeghi, H. Khalili, M. Goodarzi 2012 Chin. Phys. Lett. 29 096201 |
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Abstract We study the materials that are composed of metals and insulators. These plasmonic and non-plasmonic materials are ordered in geometric arrangements with dimensions that are fractions of the wavelength of light. A theoretical model is developed to simulate the refractive index of these nano-structured electromagnetic materials which support surface plasmon resonances. Factors contributing to the refractive index sensitivity are explored phenomenologically. Particles with size parameters smaller by much less than 1 have optical properties accurately predicted by the quasi-electrostatic theory while particles with larger size parameters necessitate electrodynamics. We simulate a type of refractive index material composed of metal and insulating dielectric nano-spheres, which are able to sustain the propagation of infrared or visible frequency electromagnetic waves known as surface plasmon polaritons.
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Received: 02 March 2012
Published: 01 October 2012
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| PACS: |
62.23.Pq
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(Composites (nanosystems embedded in a larger structure))
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78.66.-w
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(Optical properties of specific thin films)
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78.67.Sc
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(Nanoaggregates; nanocomposites)
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