Pulse Duration Dependence of 1064-nm Laser Damage Thresholds of Porous Silica Antireflection Coatings on Fused Silica Substrates

摘要

We used 1064-nm pulses with durations of 1, 5, 9 ns to measure laser-damage thresholds of 10 porous silica antireflection coatings deposited from both methanol and ethanol solutions containing silica particles with diameters of 10-20 nm. The median thresholds measured at the three pulse durations, 10.8 J/cm exp 2 , 26.5 J/cm exp 2 , and 38 J/cm exp 2 , scaled as pulse duration to the 0.56 power. 4 refs., 3 figs., 1 tab. (ERA citation 10:031581)