Spectroscopic study of modified sapphire following laser-induced damage

Raymond McBride; Brittany N. Hoffman; John C. Lambropoulos; Stavros G. Demos

doi:10.1117/12.3032703

18 December 2024 Spectroscopic study of modified sapphire following laser-induced damage

Raymond McBride, Brittany N. Hoffman, John C. Lambropoulos, Stavros G. Demos

Author Affiliations +

Proceedings Volume PC13190, Laser-Induced Damage in Optical Materials 2024; PC1319009 (2024) https://doi.org/10.1117/12.3032703
Event: SPIE Laser Damage, 2024, San Ramon, CA, United States

Abstract

Sapphire is a robust dielectric material with many applications in lasers and optical systems. It is widely used in a doped form as a laser gain medium or undoped for optical windows. Past work indicated similar laser-induced–damage behavior compared to fused silica, arguably owing to their similar relevant thermomechanical properties. We have studied laser-damaged sapphire through Raman spectroscopy and fluorescence-based piezo spectroscopy. These techniques provide new understanding related to the relaxation of the material following laser damage and quantification of the residual stress in the laser-modified region.

Conference Presentation

Citation Download Citation

Raymond McBride, Brittany N. Hoffman, John C. Lambropoulos, and Stavros G. Demos "Spectroscopic study of modified sapphire following laser-induced damage", Proc. SPIE PC13190, Laser-Induced Damage in Optical Materials 2024, PC1319009 (18 December 2024); https://doi.org/10.1117/12.3032703

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