Plasmonic Absorption Enhancement of a Single Quantum Dot

被引：3
|
作者：
Arena, S. [1 ]
Cucinotta, F. [2 ]
Di Stefano, O. [2 ]
Cacciola, A. [2 ]
Saija, R. [2 ]
Savasta, S. [2 ]
机构：
[1] Univ Siena, Dipartimento Sci Fis Terra & Ambiente, I-53100 Siena, Italy
[2] Univ Messina, Dipartimento Fis & Sci Terra, I-98166 Messina, Italy
来源：
PLASMONICS | 2015年 / 10卷 / 04期
关键词：
Localized surface plasmons; Fano effect; Absorption; RESONANT INTERFERENCE; OPTICAL-ABSORPTION; NANOSTRUCTURES; NANOPARTICLES; PHOTONICS; EXCITONS;
D O I：
10.1007/s11468-015-9886-5
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：
We study analytically the absorption properties of an individual quantum absorber, modeled as a two-level system, in the presence of a metallic nanoparticle. The coupling between the two systems can give rise to a Fano interference effect and to a relevant modification of the absorption cross section. Such effect strongly depends on the angle between the dimer axis and the electromagnetic field polarization. From this analysis, we can conclude that the localized surface plasmons are able to enhance the absorption of nanostructures, thus increasing the efficiency of solar cells based on absorbing nanoparticles.
引用
收藏
页码：955 / 962
页数：8
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