Materials 2013, 6(11), 4879-4910; doi:10.3390/ma6114879
Review

Molding of Plasmonic Resonances in Metallic Nanostructures: Dependence of the Non-Linear Electric Permittivity on System Size and Temperature

1 Istituto Italiano di Tecnologia, Via Morego 30, Genova 16163, Italy 2 King Abdullah University of Science and Technology (KAUST), Physical Science and Engineering (PSE) Division, Biological and Environmental Science and Engineering (BESE) Division, Thuwal 23955-6900, Kingdom of Saudi Arabia 3 Bio-Nanotechnology and Engineering for Medicine (BIONEM), Department of Experimental and Clinical Medicine, University of Magna Graecia Viale Europa, Germaneto, Catanzaro 88100, Italy
* Authors to whom correspondence should be addressed.
Received: 10 July 2013; in revised form: 8 October 2013 / Accepted: 10 October 2013 / Published: 25 October 2013
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Abstract: In this paper, we review the principal theoretical models through which the dielectric function of metals can be described. Starting from the Drude assumptions for intraband transitions, we show how this model can be improved by including interband absorption and temperature effect in the damping coefficients. Electronic scattering processes are described and included in the dielectric function, showing their role in determining plasmon lifetime at resonance. Relationships among permittivity, electric conductivity and refractive index are examined. Finally, a temperature dependent permittivity model is presented and is employed to predict temperature and non-linear field intensity dependence on commonly used plasmonic geometries, such as nanospheres.
Keywords: photonics; plasmonics; thermoplasmonics; temperature dependence; non-linear optics; nanostructures

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MDPI and ACS Style

Alabastri, A.; Tuccio, S.; Giugni, A.; Toma, A.; Liberale, C.; Das, G.; Angelis, F.D.; Fabrizio, E.D.; Zaccaria, R.P. Molding of Plasmonic Resonances in Metallic Nanostructures: Dependence of the Non-Linear Electric Permittivity on System Size and Temperature. Materials 2013, 6, 4879-4910.

AMA Style

Alabastri A, Tuccio S, Giugni A, Toma A, Liberale C, Das G, Angelis FD, Fabrizio ED, Zaccaria RP. Molding of Plasmonic Resonances in Metallic Nanostructures: Dependence of the Non-Linear Electric Permittivity on System Size and Temperature. Materials. 2013; 6(11):4879-4910.

Chicago/Turabian Style

Alabastri, Alessandro; Tuccio, Salvatore; Giugni, Andrea; Toma, Andrea; Liberale, Carlo; Das, Gobind; Angelis, Francesco D.; Fabrizio, Enzo D.; Zaccaria, Remo P. 2013. "Molding of Plasmonic Resonances in Metallic Nanostructures: Dependence of the Non-Linear Electric Permittivity on System Size and Temperature." Materials 6, no. 11: 4879-4910.

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