Reverse color sequence in the diffraction of white light by the wing of the male butterfly<i>Pierella luna</i>(Nymphalidae: Satyrinae)

Vigneron, Jean Pol; Simonis, Priscilla; Aiello, Annette; Bay, A.; Windsor, Donald M.; Colomer, Jean-François; Rassart, Marie

doi:10.1103/physreve.82.021903

Cited by 32 publications

(28 citation statements)

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“…The color changes from red to blue with increasing observation angle, unlike the variation from blue to red normally observed in conventional diffraction gratings (13). This reverse color diffraction effect results from the local morphology of individual scales within the colored spot on the fore wings (12). The top parts of the scales are curled upward, orienting lines of periodically arranged cross-ribs perpendicular to the wing surface.…”

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Bioinspired micrograting arrays mimicking the reverse color diffraction elements evolved by the butterfly Pierella luna

England

Kolle

Kim

et al. 2014

Proc. Natl. Acad. Sci. U.S.A.

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Recently, diffraction elements that reverse the color sequence normally observed in planar diffraction gratings have been found in the wing scales of the butterfly Pierella luna. Here, we describe the creation of an artificial photonic material mimicking this reverse color-order diffraction effect. The bioinspired system consists of ordered arrays of vertically oriented microdiffraction gratings. We present a detailed analysis and modeling of the coupling of diffraction resulting from individual structural components and demonstrate its strong dependence on the orientation of the individual miniature gratings. This photonic material could provide a basis for novel developments in biosensing, anticounterfeiting, and efficient light management in photovoltaic systems and light-emitting diodes.bioinspired optics | gratings | biophotonics T hree-dimensional photonic crystals (1-5), materials with twodimensional micro-or nanosized periodic morphologies (6-8), and one-dimensional multilayer configurations (9) have been identified as the primary cause of structural coloration in a wide variety of nonrelated biological organisms. In contrast, surfaceconfined diffraction elements for the separation of incident light into specific colors are less abundant in nature and have only been discovered in a handful of organisms (10), including a fossil polychaete (7), sea mouse Aphrodita sp. (6), and some flowering plants (11). Recently, diffraction elements that reverse the color sequence normally observed in planar diffraction gratings have been found in the scales of the butterfly Pierella luna (12).Inspired by this biological light manipulation strategy, we devised an artificial material morphology mimicking the butterfly's diffraction effect by creating periodic arrays of vertically oriented individual microdiffraction gratings. In addition to the butterflyinspired reverse color-order diffraction arising from each individual micrograting, the periodicity between the individual gratings causes diffraction on a different length scale, leading to complex intensity distributions in experimentally measured angularly resolved reflection spectra. An in-depth analysis of the observed diffraction phenomenon complemented by optical modeling revealed a strong dependence of the optical signature on the orientation of the gratings. Such an effect can only be seen because of the hierarchical nature of the superposed, orthogonal grating features. To further elucidate the role of the different structural components for the emerging reflection spectra, the initially vertically oriented individual microgratings were subjected to a tilt, resulting in a predictable change of the surface's optical signature.The dorsal side of the fore-and hind wings of P. luna males are dull brown in diffuse ambient illumination (Fig. 1A, Left). When exposed to directional illumination at grazing incidence, a coin-sized spot on each fore wing displays an angle-dependent color variation across the whole visible spectrum (Fig. 1A, Right). The color changes from re...

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“…(6), and some flowering plants (11). Recently, diffraction elements that reverse the color sequence normally observed in planar diffraction gratings have been found in the scales of the butterfly Pierella luna (12).…”

mentioning

confidence: 99%

Bioinspired micrograting arrays mimicking the reverse color diffraction elements evolved by the butterfly Pierella luna

England

Kolle

Kim

et al. 2014

Proc. Natl. Acad. Sci. U.S.A.

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“…Surface bound 2D photonic morphologies, such as the nanoscopic protrusions on insect eyes and wings that function as antireflection coatings, the diffraction patterns on curved surfaces, found, for example, on the setae of the sea mouse, and the wing scales of butterflies have been mimicked in many different variants . Structures on the back of the fog‐collecting Namib desert beetle provided inspiration for the design of a photonic‐crystal microchip for ultratrace chemical detection in highly dilute solutions .…”

Section: Biologically Inspired Photonic Materialsmentioning

confidence: 99%

Progress and Opportunities in Soft Photonics and Biologically Inspired Optics

2017

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Optical components made fully or partially from reconfigurable, stimuli-responsive, soft solids or fluids-collectively referred to as soft photonics-are poised to form the platform for tunable optical devices with unprecedented functionality and performance characteristics. Currently, however, soft solid and fluid material systems still represent an underutilized class of materials in the optical engineers' toolbox. This is in part due to challenges in fabrication, integration, and structural control on the nano- and microscale associated with the application of soft components in optics. These challenges might be addressed with the help of a resourceful ally: nature. Organisms from many different phyla have evolved an impressive arsenal of light manipulation strategies that rely on the ability to generate and dynamically reconfigure hierarchically structured, complex optical material designs, often involving soft or fluid components. A comprehensive understanding of design concepts, structure formation principles, material integration, and control mechanisms employed in biological photonic systems will allow this study to challenge current paradigms in optical technology. This review provides an overview of recent developments in the fields of soft photonics and biologically inspired optics, emphasizes the ties between the two fields, and outlines future opportunities that result from advancements in soft and bioinspired photonics.

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“…The two independent iridescent patterns that appear in certain conditions of illumination on the butterfly Lamprolenis nitida originate from two separate, blazed diffraction gratings (i.e., a special type of diffraction grating where the maximum optical power is concentrated in the desired diffraction order, while the residual power in the other orders is minimized), formed by tilted plate‐like cross ribs and flutes with opposite sloping directions . A particular rainbow iridescence with reversed color order sequence of the normal grating is observed in the wing scales of the butterfly Pierella luna , arising from vertically oriented microdiffraction gratings composed of cross‐rib structures on the curled parts of the scales, with a periodicity of ≈400 nm . Diffraction grating structures also exist in plants.…”

Section: Optical Structures Found In Naturementioning

confidence: 99%

Optical Functional Materials Inspired by Biology

Shang

et al. 2015

Advanced Optical Materials

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To learn from nature for the rational design of optical devices, the chemical and physical aspects of textures of these natural organisms should be systematically unraveled. Then the basic mechanisms as to how these structural units interact with light must be understood in depth. Finally, whether these morphologies can be fabricated by templating methods, by the current top-down methods, or by selfassembly methods should be well assessed. Up to now, biotemplating methods that take advantage of the physicochemical interactions between organic skeletons and the target solid-state materials are broadly adopted, as they are both cost and time effective. Many natural organisms have been successfully used as biotemplates to fabricate artifi cial photonic materials, including butterfl y wings, [20][21][22][23] beetles, [ 24,25 ] plant leaves, [ 26,27 ] and diatoms. [ 28,29 ] The biotemplating method can not only maintain the morphology of the natural organism, but also mimic the optical functions of the biological species. In addition, a wide range of high-quality photonic nanostructures have been fabricated using top-down methods, such as direct laser writing, photoetching, soft-lithography, and electron beam lithography. [ 10,[30][31][32] Some self-assembly systems can also provide us with novel photonic templates for the fabrication of functional materials, such as the opal structure selfassembled by polymer or silica spheres, [ 33,34 ] and some cubic phases self-assembled in block copolymer systems. [35][36][37] Inspired by natural organisms, researchers have achieved great progress in developing photonic materials in recent years. Many natural species, including birds, [ 3,38,39 ] insects (especially Lepidoptera and beetles), [ 3,[40][41][42][43] plants, [ 44,45 ] and aquatic organisms, [ 29,46 ] have a striking appearance with vivid structural colors originating from elaborate photonic crystals (PCs). PCs are periodic photonic nanostructures at the visible light wavelength scale that can affect the propagation of light. Inspired by these vivid structural colors, optical materials with photonic microstructures and brilliant color have been fabricated with applications in areas covering the cosmetics industry, [ 47 ] textile industry, [ 48 ] printing, [ 49 ] displays, [ 16 ] and security labeling. [ 5 ] As we know, structural colors originate from the interaction of light with various elaborate photonic structures, and are mainly determined by three structural parameters: the refractive index ratio, the volume fraction, and the unit cell size. [ 24 ] For certain optical systems, the photonic structural parameters can be tuned by exerting external fi elds to which the compositions are responsive, such as pH, [ 22,50 ] electromagnetic fi elds, [ 23,51 ] thermal fi elds, [ 52,53 ] gases, [ 54,55 ] and so on. By quantifying the

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Reverse color sequence in the diffraction of white light by the wing of the male butterflyPierella luna(Nymphalidae: Satyrinae)

Cited by 32 publications

References 3 publications

Bioinspired micrograting arrays mimicking the reverse color diffraction elements evolved by the butterfly Pierella luna

Bioinspired micrograting arrays mimicking the reverse color diffraction elements evolved by the butterfly Pierella luna

Progress and Opportunities in Soft Photonics and Biologically Inspired Optics

Optical Functional Materials Inspired by Biology

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