Leveraging material microstructure and linear and non-linear absorption for pulsed laser welding of ceramics

Elias H. Penilla; Javier E. Garay

doi:10.1117/12.2619214

1 April 2022 Leveraging material microstructure and linear and non-linear absorption for pulsed laser welding of ceramics

Elias H. Penilla, Javier E. Garay

Author Affiliations +

Proceedings Volume PC11988, Laser Applications in Microelectronic and Optoelectronic Manufacturing (LAMOM) XXVII; PC119880A (2022) https://doi.org/10.1117/12.2619214
Event: SPIE LASE, 2022, San Francisco, California, United States

Abstract

Laser welding can make ceramics integral components in devices for harsh environments as well as in optoelectronic and/or electronic packages needing visible-radio frequency transparency. We will discuss an ultrafast pulsed laser welding approach that relies on focusing light on interfaces to ensure an optical interaction volume in ceramics to stimulate nonlinear absorption processes, causing localized melting rather than ablation. We will begin by comparing laser joining of glasses and ceramics. We will then introduce various methods for controlling the absorption and scattering properties for ceramics because the key to the technique is the interplay between linear and nonlinear optical properties and laser energy–material coupling. Finally, we will discuss results of laser material interaction on various oxide ceramics.

Conference Presentation

Citation Download Citation

Elias H. Penilla and Javier E. Garay "Leveraging material microstructure and linear and non-linear absorption for pulsed laser welding of ceramics", Proc. SPIE PC11988, Laser Applications in Microelectronic and Optoelectronic Manufacturing (LAMOM) XXVII, PC119880A (1 April 2022); https://doi.org/10.1117/12.2619214

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