Porous Silica Antireflection Coatings

W. Howard Lowdermilk

The output energy of high-power laser systems is often limited by damage to optical component surfaces and coatings. A single layer, porous silica AR coating has been developed for fused silica optical components. These coatings have UV damage thresholds of more than twice the median threshold for conventional, vacuum deposited multilayer AR coatings.

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