Chin. Phys. Lett.  2012, Vol. 29 Issue (9): 096201    DOI: 10.1088/0256-307X/29/9/096201
CONDENSED MATTER: STRUCTURE, MECHANICAL AND THERMAL PROPERTIES |
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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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.
Received: 02 March 2012      Published: 01 October 2012
PACS:  62.23.Pq (Composites (nanosystems embedded in a larger structure))  
  78.66.-w (Optical properties of specific thin films)  
  78.67.Sc (Nanoaggregates; nanocomposites)  
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https://cpl.iphy.ac.cn/10.1088/0256-307X/29/9/096201       OR      https://cpl.iphy.ac.cn/Y2012/V29/I9/096201
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H. Sadeghi
H. Khalili
M. Goodarzi
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