Abstract

A model describing far-field scattered power and irradiance by a silica glass slab with a shallow-pitted exit surface is experimentally validated. The comparison to the model is performed using a precisely micromachined ensemble of $\sim 11\mathrm{\mu m}$ wide laser ablated shallow pits producing 1% of the incident beam scatter in a 10 mrad angle. A series of samples with damage initiations and laser-induced shallow pits resulting from 351 nm, 5 ns pulsed laser cleaning of metal microparticles at different fluences between $2\mathrm{J}/{\mathrm{cm}}^2$ and $11\mathrm{J}/{\mathrm{cm}}^2$ are characterized as well and found in good agreement with model predictions.

© 2015 Optical Society of America

Light scattering from laser induced pit ensembles on high power laser optics

Eyal Feigenbaum, Selim Elhadj, and Manyalibo J. Matthews
Opt. Express 23(8) 10589-10597 (2015)

Laser-induced Hertzian fractures in silica initiated by metal micro-particles on the exit surface

Eyal Feigenbaum, Rajesh N. Raman, David Cross, C. W. Carr, and Manyalibo J. Matthews
Opt. Express 24(10) 10527-10536 (2016)

Interference effects in laser-induced plasma emission from surface-bound metal micro-particles

Eyal Feigenbaum, Omer Malik, Alexander M. Rubenchik, and Manyalibo J. Matthews
Opt. Express 25(9) 9778-9792 (2017)

Rear-surface laser damage on 355-nm silica optics owing to Fresnel diffraction on front-surface contamination particles

François Y. Génin, Michael D. Feit, Mark R. Kozlowski, Alexander M. Rubenchik, Alberto Salleo, and James Yoshiyama
Appl. Opt. 39(21) 3654-3663 (2000)

Damage on fused silica optics caused by laser ablation of surface-bound microparticles

Rajesh N. Raman, Stavros G. Demos, Nan Shen, Eyal Feigenbaum, Raluca A. Negres, Selim Elhadj, Alexander M. Rubenchik, and Manyalibo J. Matthews
Opt. Express 24(3) 2634-2647 (2016)