Numerical Simulation on Read-Out Characteristics of the Planar Aperture-Mounted Head with a Minute Scatterer
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概要
- 論文の詳細を見る
Recently, various researches on optical recording based on near-field optical principles have been conducted for higher data storage density. However, there is a problem of the trade-off between signal output and spatial resolution, especially when an aperture-type near-field optical head is utilized for high speed data-readout. In order to solve this problem, we propose a novel near-field optical head, the planar aperture-mounted head with a minute scatterer, and analyze its read-out performance through the three-dimensional finite-difference time-domain (3D-FDTD) method. Our simulations reveal that the Silver scatterer placed at the center of the planar aperture strongly enhances optical energy due to the local surface plasmon excitation, and that this head has the potential to realize high resolution and high signal output simultaneously.
- Publication Office, Japanese Journal of Applied Physics, Faculty of Science, University of Tokyoの論文
- 2001-03-30
著者
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Hosaka Hiroshi
Graduate School Of Frontier Science The University Of Tokyo
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NAKAJIMA Kunio
Seiko Instruments Inc.
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Itao Kiyoshi
Graduate School Of Frontier Science The University Of Tokyo
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TANAKA Kenji
Graduate School of Frontier Sciences, The University of Tokyo
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OUMI Manabu
Seiko Instruments Inc
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MITSUOKA Yasuyuki
Seiko Instruments Inc
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Ohkubo Toshifumi
Graduate School Of Frontier Sciences The University Of Tokyo
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Hosaka Hiroshi
Graduate School of Frontier Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
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Itao Kiyoshi
Graduate School of Frontier Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
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Ohkubo Toshifumi
Graduate School of Frontier Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
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Tanaka Kenji
Graduate School of Frontier Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
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