The light modulation of Hertzian microcracks on optical glass with thin film

Xinyu Luo; Peng Yang; Qian Li; Jing Qiu; Guanjun Liu

doi:10.1117/12.3015411

22 December 2023 The light modulation of Hertzian microcracks on optical glass with thin film

Xinyu Luo, Peng Yang, Qian Li, Jing Qiu, Guanjun Liu

Proceedings Volume 12982, Pacific-Rim Laser Damage 2023: Optical Materials for High-Power Lasers; 129820K (2023) https://doi.org/10.1117/12.3015411
Event: SPIE/SIOM Pacific Rim Laser Damage, 2023, Shanghai, China

Abstract

The research investigated the light modulation of Hertzian microcracks on K9 optical glass with SiO2 thin film by simulations. The simulations considered parameters such as crack degree, crack opening width, and crack depth. It was observed that the internal light intensity is positively correlated with the crack degree of the microcrack. At a crack degree of 55°, the peak of light intensity occurs at the thin film, indicating that the film layer may be damaged earlier by the laser. Laser damage may first occur in the thin film with a small opening width (<0.6 μm), and as the opening width increases, damage may occur inside the substrate of the optical element. Peak points of light intensity appeared inside the thin film and substrate at a crack depth of 1 μm, and as the depth increased, the substrate became more susceptible to laser damage.

(2023) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Xinyu Luo, Peng Yang, Qian Li, Jing Qiu, and Guanjun Liu "The light modulation of Hertzian microcracks on optical glass with thin film", Proc. SPIE 12982, Pacific-Rim Laser Damage 2023: Optical Materials for High-Power Lasers, 129820K (22 December 2023); https://doi.org/10.1117/12.3015411

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