Talk:Optical coating
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[edit] AR coating layers and bandwidth
I understand from the picture how an AR coating can do its thing at a single wavelength, but how are they made to absorb across a spectrum? I assume it has to do with adding multiple layers, but it isn't immediately obvious how thick you would make each layer to minimize reflection across, say, the visible spectrum. —Ben FrantzDale (talk) 19:07, 12 June 2008 (UTC)
- Distributed Bragg reflector covers some of this, but doesn't mention AR coatings. —Ben FrantzDale (talk) 23:25, 12 June 2008 (UTC)
