Single-wall carbon nanotubes as coherent plasmon generators

被引:28
|
作者
Bondarev, I. V. [1 ]
机构
[1] N Carolina Cent Univ, Dept Phys, Durham, NC 27707 USA
基金
美国国家科学基金会;
关键词
ELECTRONIC STATES; ULTRALONG;
D O I
10.1103/PhysRevB.85.035448
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The possibility of low-energy surface plasmon amplification by optically excited excitons in small-diameter single-wall carbon nanotubes is theoretically demonstrated. The nonradiative exciton-plasmon energy transfer causes the buildup of macroscopic population numbers of coherent localized surface plasmons associated with high-intensity coherent local fields formed at nanoscale throughout the nanotube surface. These strong local fields can be used in a variety of new optoelectronic applications of carbon nanotubes, including near-field nonlinear-optical probing and sensing, optical switching, enhanced electromagnetic absorption, and materials nanoscale modification.
引用
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页数:7
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