Abstract
A comprehensive study of laser-induced damage associated with particulate damage on optical surfaces is presented. Contaminant-driven damage on silica windows and multilayer dielectrics is observed to range from shallow pitting to more classical fracture-Type damage, depending on particle-substrate material combination, as well as laser pulse characteristics. Ejection dynamics is studied in terms of plasma emission spectroscopy and pump-probe shadowgraphy. Our data is used to assess the momentum coupling between incident energy and the ejected plasma, which dominates the laser-particle-substrate interaction. Beam propagation analysis is also presented to characterize the impact of contaminant-driven surface pitting on optical performance.
Original language | English (US) |
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Title of host publication | 48th Annual Laser Damage Symposium Proceedings - Laser-Induced Damage in Optical Materials 2016 |
Publisher | SPIE |
Volume | 10014 |
ISBN (Electronic) | 9781510604360 |
DOIs | |
State | Published - 2016 |
Event | 48th Annual Laser Damage Symposium - Laser-Induced Damage in Optical Materials 2016 - Boulder, United States Duration: Sep 25 2016 → Sep 28 2016 |
Other
Other | 48th Annual Laser Damage Symposium - Laser-Induced Damage in Optical Materials 2016 |
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Country/Territory | United States |
City | Boulder |
Period | 9/25/16 → 9/28/16 |
Keywords
- Contamination
- Damage
- Energy Coupling Mechanism
- Light Scattering
- Particle Ejection
- Plasma Generation
- Pulsed Lasers
- Surfaces
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Computer Science Applications
- Applied Mathematics
- Electrical and Electronic Engineering