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Scientific Image- Blue Morpho Butterfly Wing Ridges

This scanning electron microscope image shows ridges on a Blue Morpho Butterfly wing scale. These ridges contain nanoscale structures that reflect light to create the Morpho's iridescent colors.

The Blue Morpho is common in Central and South America and known for its bright blue wings. However, these iridescent colors are created not by pigments in the wing tissues but instead by the way light interacts with nanometer-sized structures on the Morpho's wing scales. This effect is being studied as a model in the development of new fabrics, dye-free paints, and anti-counterfeit...

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Scientific Image - Blue Morpho Butterfly Wing Scales

The overlapping scales on the wing of the Blue Morpho Butterfly contain nanoscale structures that reflect light to create iridescent colors. This scanning electron microscope image shows Morpho wing scales from above.

The Blue Morpho is common in Central and South America and known for its bright blue wings. However, these iridescent colors are created not by pigments in the wing tissues but instead by the way light interacts with nanometer-sized structures on the Morpho's wing scales. This effect is being studied as a model in the development of new fabrics, dye-free paints, and...

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Scientific Image - Blue Morpho Butterfly

The iridescent colors of the Blue Morpho Butterfly's wings are produced by nanostructures that reflect different wavelengths of light.

The Blue Morpho is common in Central and South America and known for its bright blue wings. However, these iridescent colors are created not by pigments in the wing tissues but instead by the way light interacts with nanometer-sized structures on the Morpho's wing scales. This effect is being studied as a model in the development of new fabrics, dye-free paints, and anti-counterfeit technologies for currency.

•SIZE: The wing span of a Blue...

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Scientific Image - Photonic Crystal

This is a scanning electron microscope image of a photonic crystal. The periodic arrangement of the holes in the material controls the movement of light within the crystal.

A photonic crystal's highly ordered and repetitive structure affects the way light moves through it. Similar periodic arrangements are found in nature—for example, in precious opals and in the wings of the Blue Morpho butterfly—and scientists are studying these natural periodic structures to learn more about their properties and potential applications. These crystals have potential uses in computer engineering,...

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Scientific Image -Glass Nanowire

In this optical microscope image, light can be seen passing though a silica nanowire on a silica aerogel surface.

New technologies have made it possible to draw glass in long, ultra-smooth wires with uniform diameters in the nanometer range. Because of their extraordinary uniformity, these nanowires have unique properties important in optics and photonics, both of which require precise control of light.

• SIZE: This nanowire is 530 nm long and the radius of the bent wire is 8 µm.

• IMAGING TOOL: Optical Microscope

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Scientific Image - Blue Morpho Butterfly Wing Microribs

The tree-like structures in this scanning electron microscope image of a cross section of a butterfly wing are on the undersides of the Morpho's wing scale ridges. These microribs reflect light to create iridescent colors.

The Blue Morpho is common in Central and South America and known for its bright blue wings. However, these iridescent colors are created not by pigments in the wing tissues but instead by the way light interacts with nanometer-sized structures on the Morpho's wing scales. This effect is being studied as a model in the development of new fabrics, dye-free paints,...

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Scientific Image - Gecko Foot

The gecko's amazing ability to cling to vertical or inverted surfaces is due to the interaction between nanoscale structures on its feet and tiny crevices on the wall or ceiling. The soles of gecko feet are made up of overlapping adhesive lamellae covered with millions of superfine hairs, or setae, each of which branches out at the end into hundreds of spatula-shaped structures. These flexible pads—each measuring only a few nanometers across—curve to fit inside unseen cracks and divots on the surface. The combined adhesion of these millions of pads holds the gecko in place. This striking...

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Scientific Image - Pollen Grains

This scanning electron microscope image shows pollen particles from a variety of common plants: sunflower, morning glory, hollyhock, lily, primrose, and castor bean.

• SIZE: The smallest pollen grains are about 6-8 µm in diameter.

• IMAGING TOOL: Scanning electron microscope (SEM)

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Scientific Image - Silicon Nanomembrane

Air bubbles trapped beneath a silicon crystal film are shown in this optical microscope image. Light passing through the bubbles creates the circular patterns and colors.

Extremely thin films like these have important electrical properties and therefore find numerous applications in ultra-fast computer chips and high-yield solar cells. This image shows an intermediate stage of their production; trapped air bubbles are removed in later processing.

• SIZE: The sample imaged is 27 nm thick and a few cm wide.

• IMAGING TOOL: Optical Microscope

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Scientific Image - Liquid Crystal

This is an optical microscope image of a liquid crystal (Cromlyn in water). The colors are created by molecular variations or changes in the crystal's thickness.

Liquid crystals have properties of both liquids and solids: Although they can flow like a fluid, their molecules are highly ordered, like those found in solid crystals. The ubiquitous liquid crystal displays (LCDs) found in everything from watches to cell phones are made possible by devices that rapidly alter the structure of these substances—and therefore the way they interact with light.

• SIZE: The sample is 350...

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