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Bending a laser beam's cross section possible?

  1. Nov 6, 2008 #1
    So here's a crazy question...I was trying to think it through and have come up with nothing.

    Is it possible to bend a laser beam's cross section? For instance, if you are using a diode bar (which has a beam cross section resembling a line) is there a simple way to bend it into a semi-circle, or V, or some other shape?

    I don't actually have an immediate application for this in mind, I just happen to have a diode bar to play with...
     
  2. jcsd
  3. Nov 6, 2008 #2

    mgb_phys

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    Yes, the easiest way is a holographic grating.
    Cheap laser pointers normally come with a set of them that gives you lines or crosses or even more complicated shapes.
     
  4. Nov 6, 2008 #3
    Thanks! I will look into holographic gratings.
     
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