Terahertz Wave Enhanced Transmission through a Single Subwavelength Aperture with Periodic Surface Structures
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概要
- 論文の詳細を見る
We demonstrate resonantly enhanced transmission of terahertz (THz) wave radiation ($\lambda \sim 200$ μm) through a bull's eye structure (a single subwavelength aperture surrounded by concentric periodic grooves in a metal plate). The phenomenon is caused by the resonant excitation of surface waves, which are known as surface plasmon polaritons in the optical region, generated by the concentric periodic grooves. Strongly enhanced transmission of THz-wave radiation is observed through the single subwavelength circular aperture (diameter $d = 100$ μm). We also show that introducing the Bragg reflector to the bull's eye structure results in the further increase of the enhanced transmission.
- Japan Society of Applied Physicsの論文
- 2005-07-10
著者
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Minamide Hiroaki
Photodynamics Research Center Riken
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Hatakoshi Gen-ichi
Toshiba Corporation Advanced Semiconductor Devices Research Laboratories
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Ohashi Keishi
Fundamental And Environmental Research Laboratories Nec Corporation
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Ikari Tomofumi
Photodynamics Research Center Riken
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Ishihara Kunihiko
Fundamental And Environmental Research Laboratories Nec Corporation
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Ito Hiromasa
Photo Dynamics Research Center Riken
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Ikari Tomofumi
Photodynamics Research Center, RIKEN, 519-1399 Aoba Aramaki, Aoba-ku, Sendai 980-0845, Japan
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Hatakoshi Gen-ichi
Toshiba Research Consulting Corporation, 1 Komukai Toshiba-cho, Saiwai-ku, Kawasaki 212-8582, Japan
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Ito Hiromasa
Photodynamics Research Center, RIKEN, 519-1399 Aoba Aramaki, Aoba-ku, Sendai 980-0845, Japan
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