Using dielectric coating technology, fast focusing on-axis parabolic mirrors are employed with high-power femtosecond lasers at 750–850 nm in laser physics research. They have focusing <f/0.7 and can be used with power densities of up to 100 mJ/cm2 for continuous 50 fs pulses without deterioration. Surface accuracy is better than λ/10 p-v with low scatter.
Optical Surfaces
Kenley, U.K.
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LFW Staff
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