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Homework Help: Infrared absorption reflection and defraction

  1. Jun 16, 2014 #1
    Please tell me about common materials which absorb IR sunlight radiation in the band of spectrum 1.1-2,5 microns and which will not allow the penetration of IR if some surface is covered with thin layer of them ?
  2. jcsd
  3. Jun 16, 2014 #2


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    2017 Award

    Staff: Mentor

    What is "thin"?
    If reflection is fine, just use metals.
    Simple paint could work as well.
  4. Jun 16, 2014 #3
    1/10 mm
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