Structural colors of pearls

Abstract The luster is the most important characteristic of pearls, whose colors depend on periodic structures of aragonite crystal layers and conchiolin sheets. We here propose an optical model for analyzing the structural colors of pearls that includes the transmission, reflection, and scattering...

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Autores principales: Ryotaro Ozaki, Kei Kikumoto, Masataka Takagaki, Kazunori Kadowaki, Kazushi Odawara
Formato: article
Lenguaje:EN
Publicado: Nature Portfolio 2021
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Acceso en línea:https://doaj.org/article/69be3420c7a74ea890149311264fe43b
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spelling oai:doaj.org-article:69be3420c7a74ea890149311264fe43b2021-12-02T16:13:47ZStructural colors of pearls10.1038/s41598-021-94737-w2045-2322https://doaj.org/article/69be3420c7a74ea890149311264fe43b2021-07-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-94737-whttps://doaj.org/toc/2045-2322Abstract The luster is the most important characteristic of pearls, whose colors depend on periodic structures of aragonite crystal layers and conchiolin sheets. We here propose an optical model for analyzing the structural colors of pearls that includes the transmission, reflection, and scattering of light in pearls. Unlike other structural color materials, internal light scattering and its transmission are the keys to understanding the optical properties of pearls. The appearance of pearls is determined by the superposition of transmitted and reflected light. The transmission and reflection spectra of pearls calculated using the proposed model show good agreement with experimental results. We also demonstrate the rendering of images of pearls using the calculated spectra. Furthermore, the appearance of pearls with different layer thicknesses are predicted by calculation based on the optical model.Ryotaro OzakiKei KikumotoMasataka TakagakiKazunori KadowakiKazushi OdawaraNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-10 (2021)
institution DOAJ
collection DOAJ
language EN
topic Medicine
R
Science
Q
spellingShingle Medicine
R
Science
Q
Ryotaro Ozaki
Kei Kikumoto
Masataka Takagaki
Kazunori Kadowaki
Kazushi Odawara
Structural colors of pearls
description Abstract The luster is the most important characteristic of pearls, whose colors depend on periodic structures of aragonite crystal layers and conchiolin sheets. We here propose an optical model for analyzing the structural colors of pearls that includes the transmission, reflection, and scattering of light in pearls. Unlike other structural color materials, internal light scattering and its transmission are the keys to understanding the optical properties of pearls. The appearance of pearls is determined by the superposition of transmitted and reflected light. The transmission and reflection spectra of pearls calculated using the proposed model show good agreement with experimental results. We also demonstrate the rendering of images of pearls using the calculated spectra. Furthermore, the appearance of pearls with different layer thicknesses are predicted by calculation based on the optical model.
format article
author Ryotaro Ozaki
Kei Kikumoto
Masataka Takagaki
Kazunori Kadowaki
Kazushi Odawara
author_facet Ryotaro Ozaki
Kei Kikumoto
Masataka Takagaki
Kazunori Kadowaki
Kazushi Odawara
author_sort Ryotaro Ozaki
title Structural colors of pearls
title_short Structural colors of pearls
title_full Structural colors of pearls
title_fullStr Structural colors of pearls
title_full_unstemmed Structural colors of pearls
title_sort structural colors of pearls
publisher Nature Portfolio
publishDate 2021
url https://doaj.org/article/69be3420c7a74ea890149311264fe43b
work_keys_str_mv AT ryotaroozaki structuralcolorsofpearls
AT keikikumoto structuralcolorsofpearls
AT masatakatakagaki structuralcolorsofpearls
AT kazunorikadowaki structuralcolorsofpearls
AT kazushiodawara structuralcolorsofpearls
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