Résumé
langue originale | Anglais |
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Numéro d'article | 848003 |
Pages (de - à) | 1-15 |
Nombre de pages | 15 |
journal | Proc. of SPIE |
Volume | 8480 |
Numéro de publication | 84803 |
Les DOIs | |
état | Publié - 12 août 2012 |
Evénement | SPIE Conference - Optics+Photonics - San Diego, États-Unis Durée: 11 août 2012 → … |
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Additive Photonic Colors in the Brazilian Diamond Weevil, Entimus imperialis. / Mouchet, Sébastien; Vigneron, Jean-Pol; Colomer, Jean-François; Vandenbem, Cedric; Deparis, Olivier.
Dans: Proc. of SPIE, Vol 8480, Numéro 84803, 848003, 12.08.2012, p. 1-15.Résultats de recherche: Contribution à un journal/une revue › Article
TY - JOUR
T1 - Additive Photonic Colors in the Brazilian Diamond Weevil, Entimus imperialis
AU - Mouchet, Sébastien
AU - Vigneron, Jean-Pol
AU - Colomer, Jean-François
AU - Vandenbem, Cedric
AU - Deparis, Olivier
N1 - M1 - Article
PY - 2012/8/12
Y1 - 2012/8/12
N2 - Structurally colored nano-architectures found in living organisms are complex optical materials, giving rise to multi-scale visual effects. In arthropods, these structures often consist of porous biopolymers and form natural photonic crystals. A signature of the structural origin of coloration in insects is iridescence, i.e., color changes with the viewing angle. In the scales located on the elytra of the Brazilian weevil Entimus imperialis (Curculionidae), three-dimensional photonic crystals are observed. On one hand, each of them interacts independently with light, producing a single color which is observed by optical microscopy and ranges from blue to orange. On the other hand, the color perceived by the naked eye is due to multi-length-scale light effects involving different orientations of a single photonic crystal. This disorder in crystal orientations alters the light propagation in such a way that the crystal iridescence is removed. Entimus imperialis is therefore a remarkable example of additive photonic colors produced by a complex multi-scale organic architecture. In order to study this specific natural photonic structure, electron microscopy is used. The structure turns out to be formed of a single type of photonic crystal with different orientations within each scale on the elytra. Our modeling approach takes into account the disorder in the photonic crystals and explains why the structure displays bright colors at the level of individual scales and a non-iridescent green color in the far-field.
AB - Structurally colored nano-architectures found in living organisms are complex optical materials, giving rise to multi-scale visual effects. In arthropods, these structures often consist of porous biopolymers and form natural photonic crystals. A signature of the structural origin of coloration in insects is iridescence, i.e., color changes with the viewing angle. In the scales located on the elytra of the Brazilian weevil Entimus imperialis (Curculionidae), three-dimensional photonic crystals are observed. On one hand, each of them interacts independently with light, producing a single color which is observed by optical microscopy and ranges from blue to orange. On the other hand, the color perceived by the naked eye is due to multi-length-scale light effects involving different orientations of a single photonic crystal. This disorder in crystal orientations alters the light propagation in such a way that the crystal iridescence is removed. Entimus imperialis is therefore a remarkable example of additive photonic colors produced by a complex multi-scale organic architecture. In order to study this specific natural photonic structure, electron microscopy is used. The structure turns out to be formed of a single type of photonic crystal with different orientations within each scale on the elytra. Our modeling approach takes into account the disorder in the photonic crystals and explains why the structure displays bright colors at the level of individual scales and a non-iridescent green color in the far-field.
KW - Beetle scale
KW - natural photonic crystals
KW - photonic bandgap materials
KW - structural color
KW - iridescence
KW - Coleoptera
KW - nanoarchitecture
KW - bioinspiration
KW - biomimetics
KW - biomaterials
UR - http://www.scopus.com/inward/record.url?scp=84872846603&partnerID=8YFLogxK
U2 - 10.1117/12.928352
DO - 10.1117/12.928352
M3 - Article
VL - 8480
SP - 1
EP - 15
JO - Proceedings of SPIE
JF - Proceedings of SPIE
SN - 0277-786X
IS - 84803
M1 - 848003
ER -