Yellow structurally modified fluorescence in the longhorn beetles Celosterna pollinosa sulfurea and Phosphorus virescens (Cerambycidae)
| Autor: | Eloise Van Hooijdonk, Serge Berthier, Carlos Barthou, Jean-Pol Vigneron |
|---|---|
| Přispěvatelé: | Institut des Nanosciences de Paris (INSP), Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS), Belgian Fund for Scientific Research (F.R.S. - FNRS), French community of Belgium [10/15-033] |
| Jazyk: | angličtina |
| Rok vydání: | 2013 |
| Předmět: |
Phosphorus virescens
Materials science Scanning electron microscope Biophysics 02 engineering and technology 01 natural sciences Biochemistry Fluorescence 010309 optics Optics 0103 physical sciences Structural coloration [PHYS.COND]Physics [physics]/Condensed Matter [cond-mat] Longhorn beetle Celosterna pollinosa sulfurea business.industry Scattering General Chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics Atomic and Molecular Physics and Optics Wavelength Reflection (mathematics) Chemical physics Bidirectional reflectance distribution function 0210 nano-technology business |
| Zdroj: | Journal of Luminescence Journal of Luminescence, 2013, 136, pp.313-321. ⟨10.1016/j.jlumin.2012.12.022⟩ Journal of Luminescence, Elsevier, 2013, 136, pp.313-321. ⟨10.1016/j.jlumin.2012.12.022⟩ |
| ISSN: | 0022-2313 1872-7883 |
| Popis: | International audience; Celosterna pollinosa sulfurea and Phosphorus virescens are longhorn beetles which both have a sulphur-yellow pigmentary coloration and, more surprisingly, a yellow-green fluorescence coloration. In this study, we used a refined experimental examination to characterize the angular distribution of light and unveiled a different behavior between these reflection and emission processes. A key feature of these observations is the peculiar architecture of the scales (a three-dimensional photonic structure), which acts differently on each phenomenon. For reflection, this architecture can be viewed as a scattering device, while, for emission, it can be viewed as a waveguide. These effects were investigated by scanning electron microscopy (SEM), Bidirectional Reflectance Distribution Function (BRDF) diagrams and spectrophotometric measurements. Collection and analysis of data at every emergence direction was found to be crucial when studying optical properties in materials with spatial changes in composition at the scale of the light wavelength. (C) 2012 Elsevier B.V. All rights reserved. |
| Databáze: | OpenAIRE |
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