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  • Covert linear polarization signatures from brilliant white two-dimensional disordered wing structures of the phoenix damselfly

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    Accepted Manuscript (AM)
    Author(s)
    Nixon, MR
    Orr, AG
    Vukusic, P
    Griffith University Author(s)
    Orr, Albert G.
    Year published
    2017
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    Abstract
    The damselfly Pseudolestes mirabilis reflects brilliant white on the ventral side of its hindwings and a copper-gold colour on the dorsal side. Unlike many previous investigations of odonate wings, in which colour appearances arise either from multilayer interference or from wing-membrane pigmentation, the whiteness on the wings of P. mirabilis results from light scattered by a specialized arrangement of flattened waxy fibres and the copper-gold colour is produced by pigment-based filtering of this light scatter. The waxy fibres responsible for this optical signature effectively form a structure that is disordered in two ...
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    The damselfly Pseudolestes mirabilis reflects brilliant white on the ventral side of its hindwings and a copper-gold colour on the dorsal side. Unlike many previous investigations of odonate wings, in which colour appearances arise either from multilayer interference or from wing-membrane pigmentation, the whiteness on the wings of P. mirabilis results from light scattered by a specialized arrangement of flattened waxy fibres and the copper-gold colour is produced by pigment-based filtering of this light scatter. The waxy fibres responsible for this optical signature effectively form a structure that is disordered in two dimensions and this also gives rise to distinct optical linear polarization. It is a structure that provides a mechanism enabling P. mirabilis to display its bright wing colours efficiently for territorial signalling, both passively while perched, in which the sunlit copper-gold upperside is presented against a highly contrasting background of foliage, and actively in territorial contests in which the white underside is also presented. It also offers a template for biomimetic high-intensity broadband reflectors that have a pronounced polarization signature.
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    Journal Title
    Journal of The Royal Society Interface
    Volume
    14
    Issue
    130
    DOI
    https://doi.org/10.1098/rsif.2017.0036
    Copyright Statement
    © 2017 Royal Society. This is the author-manuscript version of this paper. Reproduced in accordance with the copyright policy of the publisher. Please refer to the journal website for access to the definitive, published version.
    Subject
    Zoology not elsewhere classified
    Publication URI
    http://hdl.handle.net/10072/353288
    Collection
    • Journal articles

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