Enhanced terahertz emission from quantum dot by graphene-coated nanoparticle

被引：3
|
作者：
Sijercic, Edin [1 ]
Leung, P. T. [2 ]
机构：
[1] Portland State Univ, Dept Elect & Comp Engn, POB 751, Portland, OR 97207 USA
[2] Portland State Univ, Dept Phys, POB 751, Portland, OR 97207 USA
来源：
APPLIED PHYSICS B-LASERS AND OPTICS | 2018年 / 124卷 / 07期
关键词：
THz emission; Plasmonic enhancement; Graphene-coated nanoparticles; SINGLE-MOLECULE FLUORESCENCE; OPTICAL-ABSORPTION; SMALL SPHERE; PLASMONICS; VICINITY;
D O I：
10.1007/s00340-018-7012-z
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
The terahertz (THz) emission from quantum dots in close proximity to graphene-coated nanoparticles is studied via phenomenological modeling with particular interest in the possibility of enhancement for such emission via the excitation of the graphene plasmons. It is shown that depending on various factors such as the damping factor and the Fermi level of the graphene, as well as the size and core material of the coated particle, such plasmonic-enhanced THz emission is indeed possible. This thus opens up a new pathway to provide intense THz sources for future applications.
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页数：6
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