Spatial Bloch oscillations of plasmons in nanoscale metal waveguide arrays

被引：35

作者：

Lin, Weihua ^{[1
]}

Zhou, Xiang ^{[1
]}

Wang, Guo Ping ^{[1
]}

Chan, C. T. ^{[2
]}

机构：

[1] Wuhan Univ, Dept Phys, Key Lab Acoust & Photon Mat & Dev Minist Educ, Wuhan 430072, Peoples R China

[2] Hong Kong Univ Sci & Technol, Dept Phys, Kowloon, Hong Kong, Peoples R China

来源：

APPLIED PHYSICS LETTERS | 2007年 / 91卷 / 24期

基金：

中国国家自然科学基金;

关键词：

D O I：

10.1063/1.2824394

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A kind of metal waveguide array (MWGA) structures designed for observing spatial plasmon Bloch oscillations (BOs) in nanoscale is presented. The gradient of plasmon propagation constants across the MWGAs is realized by gradually changing the dielectric constant of the dielectrics filling in the guides. Plasmon BOs in the MWGAs manifest themselves as periodic breathing and transverse motion under the conditions of initial single and multiple waveguide excitations, respectively. Analytical results from the coupled wave theory are confirmed by finite-difference time-domain numerical simulations. (C) 2007 American Institute of Physics.

引用

页数：3

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