Exploring self-healing liquid metal mirrors for high-power laser applications

Gregory S. Demos; Brittany N. Hoffman; John C Lambropoulos; Marcela Mireles

doi:10.1117/12.2685176

24 November 2023 Exploring self-healing liquid metal mirrors for high-power laser applications

Gregory S. Demos, Brittany N. Hoffman, John C Lambropoulos, Marcela Mireles

Proceedings Volume 12726, Laser-Induced Damage in Optical Materials 2023; 127260M (2023) https://doi.org/10.1117/12.2685176
Event: SPIE Laser Damage, 2023, Dublin/Livermore, California, United States

Abstract

We explore the laser-damage behavior of gallium alloy-based liquid metal mirrors for their potential to provide higherdamage- threshold performance. One of the key advantages of using liquid metal mirrors is the self-healing potential following perturbations arising from exposure to high-power laser pulses. In this work, key performance metrics, such as reflectivity and the laser-damage initiation mechanism and initiation threshold, were investigated using fused-silica cells filled with three different Ga liquid metal alloys. The results suggest that irreversible modification (damage) under 355- nm, 6-ns pulses are associated with the formation of gallium oxide, taking place at a fluence significantly higher than that for damage initiation in conventional metal mirrors. This exploratory work is the first of its kind and highlights the strong performance of gallium alloy metal mirrors.

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

Citation Download Citation

Gregory S. Demos, Brittany N. Hoffman, John C Lambropoulos, and Marcela Mireles "Exploring self-healing liquid metal mirrors for high-power laser applications", Proc. SPIE 12726, Laser-Induced Damage in Optical Materials 2023, 127260M (24 November 2023); https://doi.org/10.1117/12.2685176

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