Effect of Incident Beam Width on Light Transmission Enhancement by Bow-Tie-Shaped Nano-Aperture
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概要
- 論文の詳細を見る
In this paper, a bow-tie-shaped nano-aperture is proposed to enhance light transmission and obtain a tiny beam spot. The transmission and focusing characteristics of the proposed aperture are analyzed numerically using a dispersive three-dimensional finite-difference time-domain (3D-FDTD) method. The spot size and transmittance enhancement of the light transmitted through the optimized aperture are approximately $\lambda$/20 and 400 times, respectively. In contrast to the bowtie antenna, the proposed nano-aperture has a bow-tie-shaped opening at its center and its surroundings are filled with metal. Thus, the transmittance enhancement can be further increased by extending the interaction area between an incident beam and the metal portion of the nano-aperture, which is accomplished by increasing the beam width of an incident light.
- 2007-12-15
著者
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Lee El-hang
Research Department Electronics And Telecommunication Research Institute
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Lee El-hang
Research Department Electronics And Telecommunications Research Institute
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Lee El-hang
Electronics And Telecommunications Research Institute
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Lee E‐h
Research Department Electronics And Telecommunications Research Institute
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Park Se
Optics and Photonics Elite Research Academy (OPERA), School of Information and Communication Engineering, Inha University, 253 Yonghyun-dong, Nam-gu, Incheon 402-751, Korea
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Park Dae-Seo
Optics and Photonics Elite Research Academy (OPERA), School of Information and Communication Engineering, Inha University, 253 Yonghyun-dong, Nam-gu, Incheon 402-751, Korea
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Kim Hyun
Central R&D Institute CAE Group, Samsung Electro-Mechanics Co., Ltd., Maetan 3-dong 314, Yeongtong-gu, Suwon, Gyeonggi-do 443-373, Korea
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O Beom
Optics and Photonics Elite Research Academy (OPERA), School of Information and Communication Engineering, Inha University, 253 Yonghyun-dong, Nam-gu, Incheon 402-751, Korea
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Lee El-Hang
Optics and Photonics Elite Research Academy (OPERA), School of Information and Communication Engineering, Inha University, 253 Yonghyun-dong, Nam-gu, Incheon 402-751, Korea
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Lee Seung
Optics and Photonics Elite Research Academy (OPERA), School of Information and Communication Engineering, Inha University, 253 Yonghyun-dong, Nam-gu, Incheon 402-751, Korea
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Kim Hyun
Central R&D Institute CAE Group, Samsung Electro-Mechanics Co., Ltd., Maetan 3-dong 314, Yeongtong-gu, Suwon, Gyeonggi-do 443-373, Korea
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