Journal Article

PreJuSER-21163

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Hemispherical Brillouin zone imaging of a diamond-type biological photonic crystal

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

2012
The Royal Society London

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Please use a persistent id in citations: doi:10.1098/rsif.2011.0730

Abstract: The brilliant structural body colours of many animals are created by three-dimensional biological photonic crystals that act as wavelength-specific reflectors. Here, we report a study on the vividly coloured scales of the diamond weevil, Entimus imperialis. Electron microscopy identified the chitin and air assemblies inside the scales as domains of a single-network diamond (Fd3m) photonic crystal. We visualized the topology of the first Brillouin zone (FBZ) by imaging scatterometry, and we reconstructed the complete photonic band structure diagram (PBSD) of the chitinous photonic crystal from reflectance spectra. Comparison with calculated PBSDs indeed showed a perfect overlap. The unique method of non-invasive hemispherical imaging of the FBZ provides key insights for the investigation of photonic crystals in the visible wavelength range. The characterized extremely large biophotonic nanostructures of E. imperialis are structurally optimized for high reflectance and may thus be well suited for use as a template for producing novel photonic devices, e.g. through biomimicry or direct infiltration from dielectric material.

Keyword(s): Animals (MeSH) ; Beetles: chemistry (MeSH) ; Beetles: ultrastructure (MeSH) ; Chitin: chemistry (MeSH) ; Chitin: ultrastructure (MeSH) ; Microscopy, Electron (MeSH) ; Nanostructures: chemistry (MeSH) ; Nanostructures: ultrastructure (MeSH) ; Pigmentation (MeSH) ; Chitin

Note: Record converted from VDB: 12.11.2012

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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 ; Current Contents - Life Sciences ; JCR ; NCBI Molecular Biology Database ; SCOPUS ; Science Citation Index ; Science Citation Index Expanded ; Thomson Reuters Master Journal List ; Web of Science Core Collection ; Zoological Record

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