Structural color in beetles of South America

Photonic microstructures in nature, specifically in endemic species of Coleoptera from Argentina and the south of Chile have been identified, analyzed and modeled. These natural systems produce partial photonic bandgaps (PBGs) as a result of the high periodicity of the microstructures found in some...

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Publicado:	2010
Materias:	Iridescence Natural photonic crystals Structural color Argentina Artificial devices Chromaticity diagram Coleoptera Color production Electromagnetic models Endemic species Geometrical parameters Intelligent sensors Metallic color Natural systems Natural world Numerical results Ocean optics Physical effects Reflectance spectrum SEM SEM image South America TEM Color Light Microstructure Photonic crystals
Acceso en línea:	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_0277786X_v7782_n_p_Luna http://hdl.handle.net/20.500.12110/paper_0277786X_v7782_n_p_Luna
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	paper:paper_0277786X_v7782_n_p_Luna
record_format	dspace
spelling	paper:paper_0277786X_v7782_n_p_Luna2023-06-08T15:26:33Z Structural color in beetles of South America Iridescence Natural photonic crystals Structural color Argentina Artificial devices Chromaticity diagram Coleoptera Color production Electromagnetic models Endemic species Geometrical parameters Intelligent sensors Iridescence Metallic color Natural photonic crystals Natural systems Natural world Numerical results Ocean optics Physical effects Reflectance spectrum SEM SEM image South America Structural color TEM Color Light Microstructure Photonic crystals Photonic microstructures in nature, specifically in endemic species of Coleoptera from Argentina and the south of Chile have been identified, analyzed and modeled. These natural systems produce partial photonic bandgaps (PBGs) as a result of the high periodicity of the microstructures found in some parts of their bodies. With the aid of scanning (SEM) and transmission (TEM) electron microscopy we have identified that the elytron (modified forewing of a beetle that encases the thin hind wings used in flight) of these insects shows a periodic structure which originates diffractive phenomena resulting in extraordinary physical effects such as iridescent or metallic colors. We measured the reflectance spectrum and obtained the chromaticity diagrams of the samples with an Ocean Optics 4000 spectrophotometer. The geometrical parameters of the structure were obtained by processing the SEM images with the ImageJ software, to introduce them in our electromagnetic model. In all cases, a satisfactory agreement between the measurements and the numerical results was obtained. This permits us to explain the mechanism of color production in those specimens. The study of structural colors in the natural world can inspire the development of artificial devices with particular applications in technology, such as intelligent sensors and new kinds of filters. © 2010 SPIE. 2010 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_0277786X_v7782_n_p_Luna http://hdl.handle.net/20.500.12110/paper_0277786X_v7782_n_p_Luna
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	Iridescence Natural photonic crystals Structural color Argentina Artificial devices Chromaticity diagram Coleoptera Color production Electromagnetic models Endemic species Geometrical parameters Intelligent sensors Iridescence Metallic color Natural photonic crystals Natural systems Natural world Numerical results Ocean optics Physical effects Reflectance spectrum SEM SEM image South America Structural color TEM Color Light Microstructure Photonic crystals
spellingShingle	Iridescence Natural photonic crystals Structural color Argentina Artificial devices Chromaticity diagram Coleoptera Color production Electromagnetic models Endemic species Geometrical parameters Intelligent sensors Iridescence Metallic color Natural photonic crystals Natural systems Natural world Numerical results Ocean optics Physical effects Reflectance spectrum SEM SEM image South America Structural color TEM Color Light Microstructure Photonic crystals Structural color in beetles of South America
topic_facet	Iridescence Natural photonic crystals Structural color Argentina Artificial devices Chromaticity diagram Coleoptera Color production Electromagnetic models Endemic species Geometrical parameters Intelligent sensors Iridescence Metallic color Natural photonic crystals Natural systems Natural world Numerical results Ocean optics Physical effects Reflectance spectrum SEM SEM image South America Structural color TEM Color Light Microstructure Photonic crystals
description	Photonic microstructures in nature, specifically in endemic species of Coleoptera from Argentina and the south of Chile have been identified, analyzed and modeled. These natural systems produce partial photonic bandgaps (PBGs) as a result of the high periodicity of the microstructures found in some parts of their bodies. With the aid of scanning (SEM) and transmission (TEM) electron microscopy we have identified that the elytron (modified forewing of a beetle that encases the thin hind wings used in flight) of these insects shows a periodic structure which originates diffractive phenomena resulting in extraordinary physical effects such as iridescent or metallic colors. We measured the reflectance spectrum and obtained the chromaticity diagrams of the samples with an Ocean Optics 4000 spectrophotometer. The geometrical parameters of the structure were obtained by processing the SEM images with the ImageJ software, to introduce them in our electromagnetic model. In all cases, a satisfactory agreement between the measurements and the numerical results was obtained. This permits us to explain the mechanism of color production in those specimens. The study of structural colors in the natural world can inspire the development of artificial devices with particular applications in technology, such as intelligent sensors and new kinds of filters. © 2010 SPIE.
title	Structural color in beetles of South America
title_short	Structural color in beetles of South America
title_full	Structural color in beetles of South America
title_fullStr	Structural color in beetles of South America
title_full_unstemmed	Structural color in beetles of South America
title_sort	structural color in beetles of south america
publishDate	2010
url	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_0277786X_v7782_n_p_Luna http://hdl.handle.net/20.500.12110/paper_0277786X_v7782_n_p_Luna
_version_	1768543798491611136

Structural color in beetles of South America

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