Abstract
high reflection (HR) interference coatings for offer superior performance at high irradiance conditions. However, these coatings are not good candidates for high peak power conditions in comparison to multilayer stacks. Here we show that the modification of the top layers design of a quarter wave high reflector leads to 4–5 fold increase in the laser damage fluence compared to a quarter wave when tested at using pulse durations of 0.19 and 4 ns and peak power densities of 43.5 and . One of the designs achieved a laser damage threshold fluence of at 4 ns, which is 10% higher than that of a quarter wave design.
© 2016 Optical Society of America
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