A team from the US Northwestern University has developed a laser that changes colours using the same mechanism as chameleons. “Chameleons can easily change their colours by controlling the spacing among the nano-crystals on their skin, which determines the colour we observe,” said Professor Teri Odom. “This colouring based on surface structure is chemically stable ...
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from Electronics Weekly https://www.electronicsweekly.com/news/research-news/laser-tunes-like-chameleon-skin-2018-06/
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