Photon tunneling and transmittance resonance through a multi-layer structure with a left-handed material

This paper investigates the photon tunneling and transmittance resonance through a multi-layer structure including a left-handed material（LHM）. An analytical expression for the transmittance in a five-layer structure is given by the analytical transfer matrix method. The transmittance is studied as...

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Bibliographic Details
Published in:Chinese physics B 2011-05, Vol.20 (5), p.244-249, Article 054103
Main Author: 何英 张霞 杨艳芳 李春芳
Format: Article
Language:English
Subjects:
Exact solutions
LHM
Mathematical analysis
Multilayers
Photons
Refractive index
Refractivity
Transmittance
Tunneling
光子隧道
光折射率
分析转移矩阵方法
多层结构
左手材料
解析表达式
透射共振
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Summary:This paper investigates the photon tunneling and transmittance resonance through a multi-layer structure including a left-handed material（LHM）. An analytical expression for the transmittance in a five-layer structure is given by the analytical transfer matrix method. The transmittance is studied as a function of the refractive index and the width of the LHM layer. The perfect photon tunneling results from the multi-layer structure, especially from the relation between the magnitude of the refractive index and the width of the LHM layer and those of the adjoining layers. Photons may tunnel through a much greater distance in this structure. Transmittance resonance happens, the peaks and valleys appear periodically at the resonance thickness. For an LHM with inherent losses, the perfect transmittance is suppressed.
ISSN:1674-1056
2058-3834
DOI:10.1088/1674-1056/20/5/054103