Structural color in the Swallow Tanager (Tersina viridis): Using the Korringa-Kohn-Rostoker method to simulate disorder in natural photonic crystals

The plumage of birds often exhibits attractive color effects produced by the interaction of light with the photonic microstructure present in the feather barbs and barbules. This microstructure constitutes a natural photonic crystal that rejects radiation of wavelengths contained within the band gap...

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Autores principales: D'Ambrosio, C., Skigin, D.C., Inchaussandague, M.E., Barreira, A., Tubaro, P.
Formato: JOUR
Materias:
Energy gap
Geometry
Photonic band gap
Photonic crystals
Electromagnetic methods
Electromagnetic response
Korringa-Kohn-Rostoker method
Natural photonic crystals
Photonic structure
Reflectance spectrum
Simulated results
Structural color
Crystal microstructure
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_24700045_v98_n3_p_DAmbrosio
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_24700045_v98_n3_p_DAmbrosio
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spelling todo:paper_24700045_v98_n3_p_DAmbrosio2023-10-03T16:42:23Z Structural color in the Swallow Tanager (Tersina viridis): Using the Korringa-Kohn-Rostoker method to simulate disorder in natural photonic crystals D'Ambrosio, C. Skigin, D.C. Inchaussandague, M.E. Barreira, A. Tubaro, P. Energy gap Geometry Photonic band gap Photonic crystals Electromagnetic methods Electromagnetic response Korringa-Kohn-Rostoker method Natural photonic crystals Photonic structure Reflectance spectrum Simulated results Structural color Crystal microstructure The plumage of birds often exhibits attractive color effects produced by the interaction of light with the photonic microstructure present in the feather barbs and barbules. This microstructure constitutes a natural photonic crystal that rejects radiation of wavelengths contained within the band gap, which significantly alters the observed coloration depending on the incidence conditions. In spite of the high degree of regularity exhibited by the barb's microstructure of many species, the disorder present in these natural photonic crystals might modify the reflected response. In this paper, we address the problem of modeling the electromagnetic response of a quasiordered photonic structure, using an electromagnetic method only suitable for strictly periodic structures. In particular, we simulate the reflected response of the plumage of the Swallow Tanager (Tersina viridis) by two different approaches. On the one hand, we compute the reflected response by averaging reflectance spectra calculated by the Korringa-Kohn-Rostoker method for different geometrical parameters. We also apply the inner extinction approximation, which represents imperfections in the structure by adding a small imaginary part to the dielectric constant of the inclusions. The agreement between the experimental and the simulated results evidences the potential of the proposed methods to reproduce the electromagnetic response of natural photonic structures. © 2018 American Physical Society. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_24700045_v98_n3_p_DAmbrosio
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Energy gap
Geometry
Photonic band gap
Photonic crystals
Electromagnetic methods
Electromagnetic response
Korringa-Kohn-Rostoker method
Natural photonic crystals
Photonic structure
Reflectance spectrum
Simulated results
Structural color
Crystal microstructure
spellingShingle Energy gap
Geometry
Photonic band gap
Photonic crystals
Electromagnetic methods
Electromagnetic response
Korringa-Kohn-Rostoker method
Natural photonic crystals
Photonic structure
Reflectance spectrum
Simulated results
Structural color
Crystal microstructure
D'Ambrosio, C.
Skigin, D.C.
Inchaussandague, M.E.
Barreira, A.
Tubaro, P.
Structural color in the Swallow Tanager (Tersina viridis): Using the Korringa-Kohn-Rostoker method to simulate disorder in natural photonic crystals
topic_facet Energy gap
Geometry
Photonic band gap
Photonic crystals
Electromagnetic methods
Electromagnetic response
Korringa-Kohn-Rostoker method
Natural photonic crystals
Photonic structure
Reflectance spectrum
Simulated results
Structural color
Crystal microstructure
description The plumage of birds often exhibits attractive color effects produced by the interaction of light with the photonic microstructure present in the feather barbs and barbules. This microstructure constitutes a natural photonic crystal that rejects radiation of wavelengths contained within the band gap, which significantly alters the observed coloration depending on the incidence conditions. In spite of the high degree of regularity exhibited by the barb's microstructure of many species, the disorder present in these natural photonic crystals might modify the reflected response. In this paper, we address the problem of modeling the electromagnetic response of a quasiordered photonic structure, using an electromagnetic method only suitable for strictly periodic structures. In particular, we simulate the reflected response of the plumage of the Swallow Tanager (Tersina viridis) by two different approaches. On the one hand, we compute the reflected response by averaging reflectance spectra calculated by the Korringa-Kohn-Rostoker method for different geometrical parameters. We also apply the inner extinction approximation, which represents imperfections in the structure by adding a small imaginary part to the dielectric constant of the inclusions. The agreement between the experimental and the simulated results evidences the potential of the proposed methods to reproduce the electromagnetic response of natural photonic structures. © 2018 American Physical Society.
format JOUR
author D'Ambrosio, C.
Skigin, D.C.
Inchaussandague, M.E.
Barreira, A.
Tubaro, P.
author_facet D'Ambrosio, C.
Skigin, D.C.
Inchaussandague, M.E.
Barreira, A.
Tubaro, P.
author_sort D'Ambrosio, C.
title Structural color in the Swallow Tanager (Tersina viridis): Using the Korringa-Kohn-Rostoker method to simulate disorder in natural photonic crystals
title_short Structural color in the Swallow Tanager (Tersina viridis): Using the Korringa-Kohn-Rostoker method to simulate disorder in natural photonic crystals
title_full Structural color in the Swallow Tanager (Tersina viridis): Using the Korringa-Kohn-Rostoker method to simulate disorder in natural photonic crystals
title_fullStr Structural color in the Swallow Tanager (Tersina viridis): Using the Korringa-Kohn-Rostoker method to simulate disorder in natural photonic crystals
title_full_unstemmed Structural color in the Swallow Tanager (Tersina viridis): Using the Korringa-Kohn-Rostoker method to simulate disorder in natural photonic crystals
title_sort structural color in the swallow tanager (tersina viridis): using the korringa-kohn-rostoker method to simulate disorder in natural photonic crystals
url http://hdl.handle.net/20.500.12110/paper_24700045_v98_n3_p_DAmbrosio
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