Photonic crystal properties of the cuticle of Chrysina resplendens scarabs

• William E. Vargas ^[1] ; Eduardo Libby ^[1] ; Marcela Hernández-Jiménez ^[1] ; Marcela Alfaro-Córdoba ^[1] ; Esteban Avendaño ^[1] ; Ángel Solís ^[2] ; Daniel E. Azofeifa ^[1] ; Cynthia Barboza-Aguila ^[1]
  1. [1] Universidad de Costa Rica

     Universidad de Costa Rica

     Hospital, Costa Rica

     
  2. [2] BioAlfa Barcoding Project, Santo Domingo Heredia, Costa Rica
• Localización: Óptica pura y aplicada, ISSN-e 2171-8814, Vol. 57, Nº. 2, 2024
• Idioma: inglés
• Títulos paralelos:
  • Propiedades fotónico-cristalinas de la cutícula de escarabajos Chrysina resplendens
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• Resumen

  • Extensive radiative transfer calculations to fit the more significant average spectral features displayed inmeasured reflectance spectraby cuticles ofChrysina resplendesscarabshave been carried out. A simulatedannealing approach is the starting point to optimize the values of the spatial average uric acid volume fraction,the thickness of the retarderlayerlocated between the two left-handed chiral structures in the cuticle, and theslope of the parameter describing the variation with depth of the uric acid volume fraction through the retarderlayer. Both twisted arrangements are characterized in terms of their photonic behaviors to display the variationwith depth of the photonic band gaps, effective refractive index and birefringence, wave numbers and relativedensities of states.