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

被引：130

作者：

Alabastri, Alessandro ^{[1
]}

Tuccio, Salvatore ^{[1
]}

Giugni, Andrea ^{[1
]}

Toma, Andrea ^{[1
]}

Liberale, Carlo ^{[1
]}

Das, Gobind ^{[1
]}

De Angelis, Francesco ^{[1
]}

Di Fabrizio, Enzo ^{[2
,3
]}

Zaccaria, Remo Proietti ^{[1
]}

机构：

[1] Ist Italiano Tecnol, I-16163 Genoa, Italy

[2] KAUST, Phys Sci & Engn PSE Div, Biol & Environm Sci & Engn BESE Div, Thuwal 239556900, Saudi Arabia

[3] Magna Graecia Univ Catanzaro, Dept Expt & Clin Med, Bionanotechnol & Engn Med BIONEM, I-88100 Catanzaro, Italy

来源：

MATERIALS | 2013年 / 6卷 / 11期

关键词：

photonics; plasmonics; thermoplasmonics; temperature dependence; non-linear optics; nanostructures; INTRABAND OPTICAL CONDUCTIVITY; GOLD NANOPARTICLES; LATTICE CONTRACTION; DIELECTRIC FUNCTION; REFRACTIVE-INDEX; HEAT; SCATTERING; ENHANCEMENT; LIGHT; TIP;

D O I：

10.3390/ma6114879

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

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.

引用

页码：4879 / 4910

页数：32

共 115 条

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