Biometamaterials: Black Ultrathin Gold Film Fabricated on Lotus Leaf

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

Research output: Contribution to journalArticle

12 Citations (Scopus)

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.

Original languageEnglish
Article number15992
JournalScientific Reports
Volume5
DOIs
Publication statusPublished - 2015 Nov 4

ASJC Scopus subject areas

  • General

Cite this

Biometamaterials : Black Ultrathin Gold Film Fabricated on Lotus Leaf. / Ebihara, Yuusuke; Ota, Ryoichi; Noriki, Takahiro; Shimojo, Masayuki; Kajikawa, Kotaro.

In: Scientific Reports, Vol. 5, 15992, 04.11.2015.

Research output: Contribution to journalArticle

Ebihara, Yuusuke ; Ota, Ryoichi ; Noriki, Takahiro ; Shimojo, Masayuki ; Kajikawa, Kotaro. / Biometamaterials : Black Ultrathin Gold Film Fabricated on Lotus Leaf. In: Scientific Reports. 2015 ; Vol. 5.
@article{aa76a9a5b54c4d2393805eb5c44cb4ee,
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",
year = "2015",
month = "11",
day = "4",
doi = "10.1038/srep15992",
language = "English",
volume = "5",
journal = "Scientific Reports",
issn = "2045-2322",
publisher = "Nature Publishing Group",

}

TY - JOUR

T1 - Biometamaterials

T2 - Black Ultrathin Gold Film Fabricated on Lotus Leaf

AU - Ebihara, Yuusuke

AU - Ota, Ryoichi

AU - Noriki, Takahiro

AU - Shimojo, Masayuki

AU - Kajikawa, Kotaro

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.

UR - http://www.scopus.com/inward/record.url?scp=84946616186&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84946616186&partnerID=8YFLogxK

U2 - 10.1038/srep15992

DO - 10.1038/srep15992

M3 - Article

C2 - 26530514

AN - SCOPUS:84946616186

VL - 5

JO - Scientific Reports

JF - Scientific Reports

SN - 2045-2322

M1 - 15992

ER -