Development of high damage threshold optics for petawatt-class short-pulse lasers

Brent C. Stuart; Michael D. Perry; Robert D. Boyd; Jerald A. Britten; Bruce W. Shore; Michael D. Feit; Alexander M. Rubenchik

doi:10.1117/12.206422

10 April 1995 Development of high damage threshold optics for petawatt-class short-pulse lasers

Brent C. Stuart, Michael D. Perry, Robert D. Boyd, Jerald A. Britten, Bruce W. Shore, Michael D. Feit, Alexander M. Rubenchik

Author Affiliations +

Proceedings Volume 2377, Generation, Amplification, and Measurement of Ultrashort Laser Pulses II; (1995) https://doi.org/10.1117/12.206422
Event: Photonics West '95, 1995, San Jose, CA, United States

Abstract

We report laser-induced damage threshold measurements on pure and multilayer dielectrics and gold-coated optics at 1053 and 526 nm for pulse durations, (tau) , ranging from 140 fs to 1 ns. Damage thresholds of gold coatings are limited to 500 mJ/cm² in the subpicosecond range from 1053-nm pulses. In dielectrics, qualitative differences in the morphology of damage and a departure from the diffusion-dominated (tau) ^1/2 scaling indicate that damage results from plasma formation and ablation for (tau) <EQ 10 ps and from conventional melting and boiling for (tau) > 50 ps. A theoretical model based on electron production via multiphoton ionization, Joule heating, and collisional (avalanche) ionization is in quantitative agreement with both the pulsewidth and wavelength scaling of experimental results.

Citation Download Citation

Brent C. Stuart, Michael D. Perry, Robert D. Boyd, Jerald A. Britten, Bruce W. Shore, Michael D. Feit, and Alexander M. Rubenchik "Development of high damage threshold optics for petawatt-class short-pulse lasers", Proc. SPIE 2377, Generation, Amplification, and Measurement of Ultrashort Laser Pulses II, (10 April 1995); https://doi.org/10.1117/12.206422

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