REFLECTIONFREE. Aluminum nitride coated with antireflection filaments appears nearly black (top left), while samples of aluminum nitride, silicon, and aluminum (from second left to right) reflect much more light. An electron micrograph of the coating (bottom) shows the layers of filaments that make the coating nonreflective.
Credit: Schubert/Rensselaer Polytechnic Inst.
Found in: Materials Science
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