Journal Article

PreJuSER-22534

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Iridescence and spectral filtering of the gyroid photonic crystals in Parides sesostris wing scales

Wilts, B. D. ; Michielsen, K.FZJ* ; De Raedt, H. ; Stavenga, D. G.

2012
Royal Society Publishing London

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Please use a persistent id in citations: doi:10.1098/rsfs.2011.0082

Abstract: The cover scales on the wing of the Emerald-patched Cattleheart butterfly, Parides sesostris, contain gyroid-type biological photonic crystals that brightly reflect green light. A pigment, which absorbs maximally at approximately 395 nm, is immersed predominantly throughout the elaborate upper lamina. This pigment acts as a long-pass filter shaping the reflectance spectrum of the underlying photonic crystals. The additional effect of the filtering is that the spatial distribution of the scale reflectance is approximately angle-independent, leading to a stable wing pattern contrast. The spectral tuning of the original reflectance is verified by photonic band structure modelling.

Keyword(s): J ; photonic crystal (auto) ; Papilionidae (auto) ; optical filtering (auto) ; iridescence (auto) ; biomaterials (auto)

Note: We thank H. L. Leertouwer and A. J. M. Vey for cooperation, three anonymous reviewers for constructive comments and the Materials Science Group (Prof. J. Th. De Hosson, University of Groningen) for providing SEM facilities. This study was financially supported by AFOSR/EOARD (grant FA8655-08-1-3012) and partially supported by NCF, The Netherlands.

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Contributing Institute(s):

1. Jülich Supercomputing Centre (JSC)

Research Program(s):

1. Scientific Computing (FUEK411) (FUEK411)
2. 411 - Computational Science and Mathematical Methods (POF2-411) (POF2-411)

Appears in the scientific report 2012

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Database coverage:
; BIOSIS Previews ; JCR ; Science Citation Index Expanded ; Thomson Reuters Master Journal List ; Web of Science Core Collection

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