Biometamaterials: Black Ultrathin Gold Film Fabricated on Lotus Leaf

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

研究成果: Article

14 引用 (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.

元の言語English
記事番号15992
ジャーナルScientific Reports
5
DOI
出版物ステータスPublished - 2015 11 4

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ASJC Scopus subject areas

  • General

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