| FUNDAMENTAL AREAS OF PHENOMENOLOGY(INCLUDING APPLICATIONS) |
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Coupled THz Waveguide Utilizing Surface Plasmon Polaritons on Thin Dielectric Slab Sandwiched between Two Corrugated Metallic Claddings |
TIAN Dong-Bin, ZHANG Huai-Wu, WEN Qi-Ye, XIE Yun-Song, SONG Yuan-Qiang |
| State Key Laboratory of Electronic Thin Films and IntegratedDevices, School of Microelectronic and Solid-state Electronic, Universityof Electronic Science and Technology of China, Chengdu 610054 |
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| Cite this article: |
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TIAN Dong-Bin, ZHANG Huai-Wu, WEN Qi-Ye et al 2010 Chin. Phys. Lett. 27 044211 |
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Abstract We present a comprehensive experimental study of terahertz (THz) wave propagation utilizing surface plasmon polaritons (SPPs) on the interfaces of a thin dielectric core layer sandwiched between two corrugated metallic claddings. THz wave impinges on the structured surfaces at normal incidence. Long-lasting oscillation propagation features are observed in the temporal waveform after traveling through the periodic arrays. The enhanced THz transmission can be achieved due to the coupling between incident waves to SPPs at the bottom and top interfaces. The finite element method is used to simulate the field distribution and the transmission mode in the waveguide. The hybrid waveguide with low absorption has great potential applications in THz integrated devices.
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| Keywords:
42.79.Gn
42.25.Bs
78.66.Bz
78.68.+m
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Received: 09 September 2009
Published: 27 March 2010
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| PACS: |
42.79.Gn
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(Optical waveguides and couplers)
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42.25.Bs
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(Wave propagation, transmission and absorption)
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78.66.Bz
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(Metals and metallic alloys)
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78.68.+m
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(Optical properties of surfaces)
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