Chameleon-inspired nanolaser changes colors

phys.org | 6/20/2018 | Staff
TwiztedGurl (Posted by) Level 3
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As a chameleon shifts its color from turquoise to pink to orange to green, nature's design principles are at play. Complex nano-mechanics are quietly and effortlessly working to camouflage the lizard's skin to match its environment.

Inspired by nature, a Northwestern University team has developed a novel nanolaser that changes colors using the same mechanism as chameleons. The work could open the door for advances in flexible optical displays in smartphones and televisions, wearable photonic devices and ultra-sensitive sensors that measure strain.

Chameleons - Colors - Spacing - Nanocrystals - Skin

"Chameleons can easily change their colors by controlling the spacing among the nanocrystals on their skin, which determines the color we observe," said Teri W. Odom, Charles E. and Emma H. Morrison Professor of Chemistry in Northwestern's Weinberg College of Arts and Sciences. "This coloring based on surface structure is chemically stable and robust."

The research was published online yesterday in the journal Nano Letters. Odom, who is the associate director...
(Excerpt) Read more at: phys.org
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