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Author Noh, Heeso ♦ Liew, Seng Fatt ♦ Saranathan, Vinodkumar ♦ Prum, Richard O. ♦ Mochrie, Simon G. J. ♦ Dufresne, Eric R. ♦ Cao, Hui
Source arXiv.org
Content type Text
File Format PDF
Date of Submission 2009-12-17
Language English
Subject Domain (in DDC) Computer science, information & general works ♦ Natural sciences & mathematics ♦ Physics
Subject Keyword Physics - Optics ♦ physics:physics
Abstract We investigate the physical mechanism for color production by isotropic nanostructures with short-range order in bird feather barbs. While the primary peak in optical scattering spectra results from constructive interference of singly-scattered light, many species exhibit secondary peaks with distinct characteristic. Our experimental and numerical studies show that these secondary peaks result from double scattering of light by the correlated structures. Without an analog in periodic or random structures, such a phenomenon is unique for short-range ordered structures, and has been widely used by nature for non-iridescent structural coloration.
Educational Use Research
Learning Resource Type Article
Page Count 10


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