Anisotropic Light Transport in White Beetle Scales | Zendy

Cortese Lorenzo | Zendy; Pattelli Lorenzo | Zendy; Utel Francesco | Zendy; Vignolini Silvia | Zendy; Burresi Matteo | Zendy; Wiersma Diederik S. | Zendy

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Anisotropic Light Transport in White Beetle Scales

Author(s) -

Cortese Lorenzo,

Pattelli Lorenzo,

Utel Francesco,

Vignolini Silvia,

Burresi Matteo,

Wiersma Diederik S.

Publication year - 2015

Publication title -

advanced optical materials

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.89

H-Index - 91

ISSN - 2195-1071

DOI - 10.1002/adom.201500173

Subject(s) - iridescence , structural coloration , materials science , optics , refractive index , scattering , light scattering , anisotropy , broadband , brightness , optoelectronics , absorption (acoustics) , wavelength , reflectivity , photonic crystal , physics

The extremely brilliant whiteness shown by the Cyphochilus beetle is generated by multiple scattering of light inside the ultrathin scales that cover its body, whose interior is characterized by an anisotropic nanostructured network of chitin filaments. It is demonstrated that the structural anisotropy of the network is crucial in order to achieve high broadband reflectance from such a thin, low‐refractive‐index system.

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