Measuring and modelling optical scattering and the colour quality of white pierid butterfly scales

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Measuring and modelling optical scattering and the colour quality of white pierid butterfly scales

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dc.contributor.author Luke, S. M. en_GB
dc.contributor.author Vukusic, Peter en_GB
dc.contributor.author Hallam, B. T. en_GB
dc.date.accessioned 2010-02-04T16:08:39Z en_GB
dc.date.accessioned 2011-01-25T11:54:17Z en_US
dc.date.accessioned 2013-03-20T13:07:10Z
dc.date.issued 2009 en_GB
dc.description.abstract Colouration in butterfly wings is due to the interaction of light with a covering of scales on both wing surfaces. A combination of nanostructure in the scales, which reflect or scatter light, and absorption from chemical pigments in the scales and wing substrate create the final colour appearance. We compared the wing scale morphology of the pierid butterfly Pieris rapae (Small White) to the reflectance spectra from its wings. Its wing scales contain a dense array of pterin pigment beads. A positive correlation between bead-array density and wing reflectance, at wavelengths where the pigment does not absorb, was identified and characterised. We observed, however, that light scatter from these beads does not account for all of the broadband light scatter observed from the wings. The rest of the scale structure plays an important role in achieving high light scatter. Furthermore, combining the underlying scattering and absorption mechanisms within the butterfly scales enabled us to quantify the optical characteristics of the samples using CIELab colour theory. en_GB
dc.identifier.citation 17 (17), pp. 14729–14743 en_GB
dc.identifier.doi 10.1364/OE.17.014729 en_GB
dc.identifier.uri http://hdl.handle.net/10036/91152 en_GB
dc.language.iso en en_GB
dc.publisher Optical Society of America en_GB
dc.relation.url http://dx.doi.org/10.1364/OE.17.014729 en_GB
dc.relation.url http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-17-17-14729 en_GB
dc.title Measuring and modelling optical scattering and the colour quality of white pierid butterfly scales en_GB
dc.type Article en_GB
dc.date.available 2010-02-04T16:08:39Z en_GB
dc.date.available 2011-01-25T11:54:17Z en_US
dc.date.available 2013-03-20T13:07:10Z
dc.identifier.issn 1094-4087 en_GB
dc.description Copyright © 2009 Optical Society of America. This paper was published in Optics Express and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-17-17-14729 . Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law. en_GB
dc.identifier.journal Optics Express en_GB


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