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Giant Circular Dichroism in Individual Carbon Nanotubes Induced by Extrinsic Chirality
http://hdl.handle.net/2261/56350
http://hdl.handle.net/2261/56350fe231d55-34bc-4557-9c4d-d38fc2c91cef
名前 / ファイル | ライセンス | アクション |
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PhysRevX.4.011005.pdf (632.3 kB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2017-01-10 | |||||
タイトル | ||||||
タイトル | Giant Circular Dichroism in Individual Carbon Nanotubes Induced by Extrinsic Chirality | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源 | http://purl.org/coar/resource_type/c_6501 | |||||
タイプ | journal article | |||||
著者 |
Yokoyama, A.
× Yokoyama, A.× Yoshida, M.× Ishii, A.× Kato, Y. K. |
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著者所属 | ||||||
著者所属 | Institute of Engineering Innovation, The University of Tokyo | |||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Circular dichroism is widely used for characterizing organic and biological materials, but measurements at a single-molecule level are challenging because differences in absorption for opposite helicities are small. Here, we show that extrinsic chirality can induce giant circular dichroism in individual carbon nanotubes, with the degree of polarization reaching 65%. The signal has a large dependence on the incidence angle, consistent with extrinsic-chirality-induced effects in which symmetry is broken by the optical wave vector. We propose that the field-induced charge distribution on the substrate results in an efficient polarization conversion, giving rise to the giant dichroism. Our results highlight the possibility of polarization manipulation at the nanoscale for applications in integrated photonics and novel metamaterial designs. | |||||
書誌情報 |
Physical Review X 巻 4, p. 011005, 発行日 2014-01-21 |
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DOI | ||||||
識別子タイプ | DOI | |||||
関連識別子 | info:doi/10.1103/PhysRevX.4.011005 | |||||
権利 | ||||||
権利情報 | This article is available under the terms of the Creative Commons Attribution 3.0 License. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. | |||||
出版者 | ||||||
出版者 | American Physical Society | |||||
異版である | ||||||
関連タイプ | isVersionOf | |||||
識別子タイプ | URI | |||||
関連識別子 | http://dx.doi.org/10.1103/PhysRevX.4.011005 |