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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 21, Iss. 16 — Aug. 12, 2013
  • pp: 19189–19201

Characterization of the iridescence-causing multilayer structure of the Ceroglossus suturalis beetle using bio-inspired optimization strategies

Ana Luna, Demetrio Macías, Diana Skigin, Marina Inchaussandague, Daniel Schinca, Miriam Gigli, and Alexandre Vial  »View Author Affiliations

Optics Express, Vol. 21, Issue 16, pp. 19189-19201 (2013)

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We investigate the iridescence exhibited by Ceroglossus suturalis beetles, which mostly live endemically in the southern end of South America. Two differently colored specimens have been studied. We observed and characterized the samples by different microscopy techniques, which revealed a multilayer structure within their cuticle. Using measured reflectance spectra as input data, we applied heuristic optimization techniques to estimate the refractive index values of the constituent materials, to be introduced within the theoretical model. The color of the samples was calculated for different incidence angles, showing that multilayer interference is the mechanism responsible for the observed iridescence.

© 2013 OSA

OCIS Codes
(170.1420) Medical optics and biotechnology : Biology
(230.4170) Optical devices : Multilayers
(330.1690) Vision, color, and visual optics : Color
(050.1755) Diffraction and gratings : Computational electromagnetic methods

ToC Category:
Diffraction and Gratings

Original Manuscript: June 6, 2013
Revised Manuscript: July 12, 2013
Manuscript Accepted: July 15, 2013
Published: August 6, 2013

Virtual Issues
Vol. 8, Iss. 9 Virtual Journal for Biomedical Optics

Ana Luna, Demetrio Macías, Diana Skigin, Marina Inchaussandague, Daniel Schinca, Miriam Gigli, and Alexandre Vial, "Characterization of the iridescence-causing multilayer structure of the Ceroglossus suturalis beetle using bio-inspired optimization strategies," Opt. Express 21, 19189-19201 (2013)

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