The high energy laser put forward higher requirements about resistance laser damage ability of thin film on surface of optical component, this makes coating film not only consider the optical parameters of thin films, but also consider the film’s laser damage threshold to get the optical system work normally. mainly analyzing factors about effecting the SiO₂ thin film’s laser damage threshold and researching respectively the SiO₂ thin film’s optical parameters (such as extinction coefficient, thickness, refractive index and so on) and light sources parameters of testing system (such as laser times of irradiation, pulse width and so on) impact on thin film laser damage threshold. Research shows that thin film optical parameters have little influence on laser damage threshold, testing laser parameters have great influence on laser damage threshold.

Date Published: 16 October 2012
PDF: 4 pages
Proc. SPIE 8416, 6th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies, 84162D (16 October 2012); doi: 10.1117/12.974305

Published in SPIE Proceedings Vol. 8416:
6th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies
Li Yang; Eric Ruch; Shengyi Li, Editor(s)