表面科学
Online ISSN : 1881-4743
Print ISSN : 0388-5321
ISSN-L : 0388-5321
研究紹介
ナノ分解能イメージングを実現する金属ナノレンズ
小野 篤史
著者情報
ジャーナル フリー

2010 年 31 巻 9 号 p. 500-505

詳細
抄録

It is proposed that an array of metallic nanorods works as a lens to resolve objects with nanospatial resolution. The fluorescence or scattered light from molecules is plasmonically transferred through the rod array to reproduce the electric field distribution of the object in the other side. The field distributions are simulated by finite-difference time-domain algorithm. The spatial resolution was achieved to 40 nm given by the rod diameter and the array distance. It is found that the stacked arrangement of metallic nanorods resonates in broadband. This broadband resonance enables to generate a magnified image in color. The magnification is achieved by using much larger spacing between nanorods at the image plane compared with the object plane. Such a metallic nanolens has a potential to be a powerful imaging tool for the observation of individual viruses and molecules in the far-field.

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この記事はクリエイティブ・コモンズ [表示 - 非営利 4.0 国際]ライセンスの下に提供されています。
https://creativecommons.org/licenses/by-nc/4.0/deed.ja
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