A peacock's bright teal and brilliant blue feathers are not the result of pigments but rather nanoscale networks that reflect specific wavelengths of light. This so-called structural coloration has long interested researchers and engineers because of its durability and potential for application in solar arrays, biomimetic tissues and adaptive camouflage. But today's techniques to integrate structural color into materials are time-consuming and costly.
Now, researchers at the Harvard John A. Paulson School of Engineering and Applied Sciences (SEAS), in collaboration with King Abdullah University of Science and Technology, have developed a new, more robust and cost effective system to build large-scale metamaterials with structural color. The research is described in the journal Nature Light: Science and Applications.
[...]Unlike a peacock's ordered array of nanostructures, contingas get their vibrant hues from a disordered and porous nanonetwork of keratin that looks like a sponge or piece of coral. When light strikes the feather, the porous keratin pattern causes red and yellow wavelengths to cancel each other out, while blue wavelengths of light amplify one another.
"Usually, we associate the idea of disorder with the notion that something is uncontrollable," said Federico Capasso, Robert L. Wallace Professor of Applied Physics and Vinton Hayes Senior Research Fellow in Electrical Engineering at SEAS and senior of author of the paper. "Here disorder can be put to our advantage and used as a design parameter to create a new class of metamaterials with a wide range of funcitionalities and applications"
(Score: 0) by Anonymous Coward on Wednesday November 30 2016, @03:12AM
Je pense que c'est cotingas.
(Score: 0) by Anonymous Coward on Wednesday November 30 2016, @03:20AM
i thought pecock was code word for can SEE "integration" and "differancienz"?
the color and feedi g the ovegrown piveon was just to inpress? the plebsnow get off me lawn t-heheheh.
(Score: 0) by Anonymous Coward on Wednesday November 30 2016, @03:42AM
https://www.google.com/patents/US4251330 [google.com]
http://www.pfonline.com/articles/interference-coloring [pfonline.com]
http://www.anodizing.org/?page=pub_interfer [anodizing.org]
(Score: 2, Insightful) by wisnoskij on Wednesday November 30 2016, @03:50AM
All color is a result of structure. There is no such thing as a red atom, it is how the atoms are structured that captures or reflects light of certain wavelengths. Pigment is not a fundamental concept, all pigment is is a structure that captures some wavelengths and reflects others.
(Score: 2, Informative) by Anonymous Coward on Wednesday November 30 2016, @10:26AM
For capturing and reflecting perhaps. But the wavelengths of _emitted_ light is not necessarily linked to structure.
See also:
https://en.wikipedia.org/wiki/Incandescence [wikipedia.org]
https://en.wikipedia.org/wiki/Fluorescence#Photochemistry [wikipedia.org]
p.s. I'm skipping the qualia of color thing, that's a different topic: https://en.wikipedia.org/wiki/Qualia [wikipedia.org]
(Score: 2, Redundant) by wonkey_monkey on Wednesday November 30 2016, @09:30AM
Unlike a peacock's ordered array of nanostructures, contingas get their vibrant hues
That should be cotingas (the error is in the original article) and they're a kind of bird with bright feathers (context was lost in the selection of paragraphs).
systemd is Roko's Basilisk