Control of plasmonic wave propagating in nanocavity with tooth-shaped configuration

doi:10.1088/1674-1056/20/1/015204

中国物理B ›› 2011, Vol. 20 ›› Issue (1): 15204-015204.doi: 10.1088/1674-1056/20/1/015204

• PHYSICS OF GASES, PLASMAS, AND ELECTRIC DISCHARGES • 上一篇下一篇

Control of plasmonic wave propagating in nanocavity with tooth-shaped configuration

李旭峰, 潘石, 郭英楠, 王乔

School of Physics and Optoelectronic Technology, Dalian University of Technology, Dalian 116024, China

收稿日期:2010-04-24 修回日期:2010-07-06 出版日期:2011-01-15 发布日期:2011-01-15
基金资助:
Project supported by the National Natural Science Foundation of China (Grant No. 10974025).

Control of plasmonic wave propagating in nanocavity with tooth-shaped configuration

Li Xu-Feng(李旭峰), Pan Shi(潘石)^†, Guo Ying-Nan (郭英楠), and Wang Qiao(王乔)

School of Physics and Optoelectronic Technology, Dalian University of Technology, Dalian 116024, China

Received:2010-04-24 Revised:2010-07-06 Online:2011-01-15 Published:2011-01-15
Supported by:
Project supported by the National Natural Science Foundation of China (Grant No. 10974025).

摘要/Abstract

摘要： Characteristics of plasmonic wave propagating in nanocavity formed by two silver films are studied numerically. The groove etched inside wall of the top film makes it possible to control the propagation when light goes through the top film along a nanoslit into the cavity. It is found that the transmission wave through the channel of groove etched side can be filtered linearly with the groove of a certain depth; while the other side is still open for this wave and its intensity can be enhanced periodically with the variable groove position in both films, which are explained well based on the interference of plasmonic waves in the system.

Abstract: Characteristics of plasmonic wave propagating in nanocavity formed by two silver films are studied numerically. The groove etched inside wall of the top film makes it possible to control the propagation when light goes through the top film along a nanoslit into the cavity. It is found that the transmission wave through the channel of groove etched side can be filtered linearly with the groove of a certain depth; while the other side is still open for this wave and its intensity can be enhanced periodically with the variable groove position in both films, which are explained well based on the interference of plasmonic waves in the system.

Key words: plasmonic wave, optical devices, FDTD

中图分类号: (Waves, oscillations, and instabilities in plasmas and intense beams)

52.35.-g

42.79.-e (Optical elements, devices, and systems) 02.60.-x (Numerical approximation and analysis)

李旭峰, 潘石, 郭英楠, 王乔. Control of plasmonic wave propagating in nanocavity with tooth-shaped configuration[J]. 中国物理B, 2011, 20(1): 15204-015204.

Li Xu-Feng(李旭峰), Pan Shi(潘石), Guo Ying-Nan (郭英楠), and Wang Qiao(王乔). Control of plasmonic wave propagating in nanocavity with tooth-shaped configuration[J]. Chin. Phys. B, 2011, 20(1): 15204-015204.

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Control of plasmonic wave propagating in nanocavity with tooth-shaped configuration

Control of plasmonic wave propagating in nanocavity with tooth-shaped configuration

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