Biometamaterials: Black Ultrathin Gold Film Fabricated on Lotus Leaf

Yuusuke Ebihara; Ryoichi Ota; Takahiro Noriki; Masayuki Shimojo; Kotaro Kajikawa

doi:10.1038/srep15992

Biometamaterials: Black Ultrathin Gold Film Fabricated on Lotus Leaf

Yuusuke Ebihara, Ryoichi Ota, Takahiro Noriki, Masayuki Shimojo, Kotaro Kajikawa

研究成果: Article › 査読

17 被引用数 (Scopus)

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We report on a black metamaterial of gold fabricated on a lotus leaf that was used as a template. In spite of the extremely thin gold coating (10-nm thick) on the lotus leaf, the surface shows reflectivity below 0.01 over the entire visible spectral range. Finite-difference time-domain (FDTD) calculations suggest that the low reflectivity stems from the secondary structures on the lotus leaf, where randomly oriented nanorods are distributed.

本文言語	English
論文番号	15992
ジャーナル	Scientific Reports
巻	5
DOI	https://doi.org/10.1038/srep15992
出版ステータス	Published - 2015 11月 4

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title = "Biometamaterials: Black Ultrathin Gold Film Fabricated on Lotus Leaf",

abstract = "We report on a black metamaterial of gold fabricated on a lotus leaf that was used as a template. In spite of the extremely thin gold coating (10-nm thick) on the lotus leaf, the surface shows reflectivity below 0.01 over the entire visible spectral range. Finite-difference time-domain (FDTD) calculations suggest that the low reflectivity stems from the secondary structures on the lotus leaf, where randomly oriented nanorods are distributed.",

author = "Yuusuke Ebihara and Ryoichi Ota and Takahiro Noriki and Masayuki Shimojo and Kotaro Kajikawa",

note = "Funding Information: This work was partially supported by a Grant-in-Aid for Scientific Research (No. 25109707, 26600023, 26286058) from the Japan Society for the Promotion of Science.",

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AU - Ebihara, Yuusuke

AU - Ota, Ryoichi

AU - Noriki, Takahiro

AU - Shimojo, Masayuki

AU - Kajikawa, Kotaro

N1 - Funding Information: This work was partially supported by a Grant-in-Aid for Scientific Research (No. 25109707, 26600023, 26286058) from the Japan Society for the Promotion of Science.

PY - 2015/11/4

Y1 - 2015/11/4

N2 - We report on a black metamaterial of gold fabricated on a lotus leaf that was used as a template. In spite of the extremely thin gold coating (10-nm thick) on the lotus leaf, the surface shows reflectivity below 0.01 over the entire visible spectral range. Finite-difference time-domain (FDTD) calculations suggest that the low reflectivity stems from the secondary structures on the lotus leaf, where randomly oriented nanorods are distributed.

AB - We report on a black metamaterial of gold fabricated on a lotus leaf that was used as a template. In spite of the extremely thin gold coating (10-nm thick) on the lotus leaf, the surface shows reflectivity below 0.01 over the entire visible spectral range. Finite-difference time-domain (FDTD) calculations suggest that the low reflectivity stems from the secondary structures on the lotus leaf, where randomly oriented nanorods are distributed.

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JO - Scientific Reports

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Biometamaterials: Black Ultrathin Gold Film Fabricated on Lotus Leaf

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