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  •  This is, I believe, just Mie Scattering (1+ / 0-)
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    rb608

    Mie scattering of particles peaks where the particle diameter is equal to the wavelength of light (see my notes...)

    x = 2 π r/λ  and that is a pi not an n, thanks Kos for the lousy font set.

    So Chou is near the Mie peak.  

    Now why holes over particles of a given radius?  Babinet's principle.  A screen of holes is the same as a film with just the holes coated and otherwise transparent.

    Ain't physics fun?

    Also re gold.... Any metal film will do.  I'm sure that aluminum would work the same.

    Mitt Romney rides off into the sunset in his Audi.

    by captainlaser on Sat Dec 08, 2012 at 07:49:35 AM PST

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    •  That's a step or two (0+ / 0-)

      past what I remember from my college physics, but still very interesting.  Methinks I need to dust off a few cobwebs from that part of the brain.  I need more Sheldon Cooper and less Howard Wolowitz.

      "It is not, you fucking liberal prick." ..My RW friend Dave's last words to me.

      by rb608 on Sat Dec 08, 2012 at 07:55:34 AM PST

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