Graded‐index antireflection (AR) surfaces can be developed on phase‐separated optical‐quality glass. These surfaces have a median damage threshold of 12 J/cm2 for 1‐ns, 1.06‐μm laser pulses which is 2.5 times higher than the threshold of thin‐film AR coatings, and reflectivity ≲0.2%, comparable to thin‐film coatings.

Topics
Thin films, Optical coatings, Laser applications
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© 1980 American Institute of Physics.
1980
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