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Smallest curvature radius in gradient index optics

  1. Jul 8, 2013 #1

    would someone know what is the smallest radius of curvature achievable with current gradient index optics (GRIN) technology?
    I mean, how much could one "curve" a ray of light?

    Many thanks! :smile:
  2. jcsd
  3. Aug 12, 2013 #2

    Simon Bridge

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    That would be proportional to the smallest radius turn that a graded index fibre can still work at - and manufacturers tend to publish that figure.
    I'm seeing figures of order 5mm.

    You could figure out what the grading needs to be to support a particular mean bend radius and compare the maximum refractive index with transparent materials.
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