Omnidirectional light absorption of disordered nano-hole structure inspired from Papilio ulysses

Wanlin Wang, Wang Zhang, Xiaotian Fang, Yiqiao Huang, Qinglei Liu, M. Bai, Di Zhang

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

Butterflies routinely produce nanostructured surfaces with useful properties. Here, we report a disordered nano-hole structure with ridges inspired by Papilio ulysses that produce omnidirectional light absorption compared with the common ordered structure. The result shows that the omnidirectional light absorption is affected by polarization, the incident angle, and the wavelength. Using the finite-difference time-domain (FDTD) method, the stable omnidirectional light absorption is achieved in the structure inspired from the Papilio ulysses over a wide incident angle range and with various wavelengths. This explains some of the mysteries of the structure of the Papilio ulysses butterfly. These conclusions can guide the design of omnidirectional absorption materials.

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Original languageEnglish
Pages (from-to)4208-4211
Number of pages4
JournalOptics Letters
Volume39
Issue number14
DOIs
Publication statusPublished - 11 Jul 2014
Externally publishedYes

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