The adsorption behavior between particle contamination and fused silica in high-energy laser system

Q. S. Bai; X. He; K. Zhang; W. Yang; F. H. Zhang; X. D. Yuan

doi:10.1117/12.2272078

1 August 2017 The adsorption behavior between particle contamination and fused silica in high-energy laser system

Q. S. Bai, X. He, K. Zhang, W. Yang, F. H. Zhang, X. D. Yuan

Proceedings Volume 10339, Pacific Rim Laser Damage 2017: Optical Materials for High-Power Lasers; 103392C (2017) https://doi.org/10.1117/12.2272078
Event: Pacific Rim Laser Damage 2017: Optical Materials for High Power Lasers, 2017, Shanghai, China

Abstract

In high-energy laser facility, the residual nano-particles that are remained in mechanical system or produced by the interaction of kinetic-pairs are inevitable. The generation and the propagation of particulate pollutants will seriously reduce the performance of the laser systems. Therefore, the research about the adsorption behavior of particle contaminants on fused silica is very important to maintain the optical components’ surface clean, reduce induced damage, and finally prolong the life of the optical components. In this paper, the adsorption behavior between aluminum nano-particles and fused silica was simulated by molecular dynamics method. The effect of the surface roughness of fused silica on the state of adsorption and the state before adsorption has been studied. Then an experiment system based on an atomic force microscope was established to measure the adsorption force and further to verify the simulated results. Finally, the adsorption mechanism between metallic nano-particles and fused silica was revealed. The results show that surface roughness and the size of the particles are two of the main factors to influence the adsorption force. The rough fused silica surface can be “particle-phobic” due to the decreased contact area, which is beneficial to keep the fused silica surface clean.

Citation Download Citation

Q. S. Bai, X. He, K. Zhang, W. Yang, F. H. Zhang, and X. D. Yuan "The adsorption behavior between particle contamination and fused silica in high-energy laser system", Proc. SPIE 10339, Pacific Rim Laser Damage 2017: Optical Materials for High-Power Lasers, 103392C (1 August 2017); https://doi.org/10.1117/12.2272078

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available