Trap rainbows in a cage

Discussion in 'Off-Topic Discussion' started by Dennis J, Mar 17, 2011.

  1. Dennis J

    Dennis J Member

    Jan 10, 2011
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    I read a mighty interesting article today how some scientists managed to ‘trap’ a rainbow. In short, this is what they did:

    ‘They etched grooves into a tiny piece of silver, each groove slightly deeper than the last. They then shone light over the surface, letting some of it interact with the plasmons on the silver. They found that the grooves trapped different wavelengths of light from 500-700 nanometers.’

    Whoa… can you just imagine you get to have some rainbow creator in your garden or living room :D WANT!


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