Colour characterization of a Morpho butterfly wing-scale using a high accuracy nonstandard finite-difference time-domain method

Banerjee, Saswatee; Cole, James B.; Yatagai, Toyohiko

doi:10.1016/j.micron.2006.07.004

Cited by 42 publications

(29 citation statements)

References 14 publications

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“…These are geometrically arranged to mimic the distribution of the lamellae associated with Morpho scales. Numerical calculation of the hemispherical scatter from such simplified 2D geometries demonstrates the spectral dependence of the tapering and asymmetry of lamellae within the structures [109][110][111]. 3D FDTD models can help explore the effect of changing the alignment and offset of lamellae on the luminance and colour of scattered light [112,113].…”

Section: Overview Of Colour Production In Morpho Butterfliesmentioning

confidence: 99%

Light manipulation principles in biological photonic systems

Starkey

Vukusic

2013

Nanophotonics

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Abstract:The science of light and colour manipulation continues to generate interest across a range of disciplines, from mainstream biology, across multiple physics-based fields, to optical engineering. Furthermore, the study of light production and manipulation is of significant value to a variety of industrial processes and commercial products. Among the several key methods by which colour is produced in the biological world, this review sets out to describe, in some detail, the specifics of the method involving photonics in animal and plant systems; namely, the mechanism commonly referred to as structural colour generation. Not only has this theme been a very rapidly growing area of physics-based interest, but also it is increasingly clear that the biological world is filled with highly evolved structural designs by which light and colour strongly influence behaviours and ecological functions.

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Section: Overview Of Colour Production In Morpho Butterfliesmentioning

confidence: 99%

Light manipulation principles in biological photonic systems

Starkey

Vukusic

2013

Nanophotonics

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“…The CIE (International Commission on Illumination) colorimetric system is used for color analysis to yield the three tristimulus values which become the chromaticity coordinates for normal vision. They are found from the following convolution integrals (14) :…”

Section: Optimization Parameter and Color Coordinatesmentioning

confidence: 99%

The Effects of Using Some Common White Pigments on Thermal and Aesthetic Performances of Pigmented Coatings

Baneshi

Maruyama

Komiya

2009

JTST

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A coated surface with high reflectance in the near infrared (NIR) region and low reflectance in the visible (VIS) region can both stay cool in the sun and retain its appearance by reducing the glare of reflected sunlight. To design such coatings, an optimization method that embraces both thermal and aesthetic effects is introduced. White pigments are widely used in designing cool coatings due to their relatively high reflectance of sunlight. However, using white pigments may produce glare, which can cause visual discomfort. It is possible to control these effects by controlling the size of pigment particles, volume concentration of pigments and coating thickness. Among the various white pigments that are available, we chose titanium dioxide, zinc oxide and alumina for this study. Radiative heat transfer in an anisotropic scattering, monodisperse pigmented layer was analyzed using the radiation element method by ray emission model (REM 2 ). Both collimated and diffuse solar irradiations were considered. The CIE (International Commission on Illumination) colorimetric system was used for color analysis. Finally, the optimum values of particle size, volume fraction of pigment, and coating thickness were obtained and compared for the three mentioned pigments.

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“…The focus of the present investigation is the modeling of the optical properties of nanostructured plastic surfaces and surface design optimization for achieving specific reflection and transmission characteristics. This work is a first step toward the goal of developing a methodology for designing three-dimensional (3D) surfaces displaying structural color properties imitating the wings of a butterflies and other animals [5][6][7].…”

Section: Introductionmentioning

confidence: 99%

Robust topology design of periodic grating surfaces

Friis¹,

Sigmund²

2012

J. Opt. Soc. Am. B

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Modern nanoscale manufacturing techniques allow for a high degree of flexibility in designing surface microstructures and nanostructures. Injection molding of nanosized features allows for mass production of plastic components with a tailored nanostructure producing specific optical effects depending on the purpose. This work details the use of topology optimization for designing periodic polymer grating surfaces with complex optical properties. A method based on robust topology optimization is formulated for designing the nanostructure of plastic surfaces with extreme reflection or transmission properties. Topology optimization allows for free distribution of material but a mechanical constraint based on the fundamental free mechanical vibration frequency ensures connected structures. Several examples are given to illustrate the efficiency of the method.

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Colour characterization of a Morpho butterfly wing-scale using a high accuracy nonstandard finite-difference time-domain method

Cited by 42 publications

References 14 publications

Light manipulation principles in biological photonic systems

Light manipulation principles in biological photonic systems

The Effects of Using Some Common White Pigments on Thermal and Aesthetic Performances of Pigmented Coatings

Robust topology design of periodic grating surfaces

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