About this Abstract |
Meeting |
2023 TMS Annual Meeting & Exhibition
|
Symposium
|
Advances in Powder and Ceramic Materials Science
|
Presentation Title |
Developing Transparent Ceramics for Laser Power Scaling and Laser Welding |
Author(s) |
Y Kodera, Xingzhong Wu , E. Penilla, Javier Garay |
On-Site Speaker (Planned) |
Javier Garay |
Abstract Scope |
Transparent ceramics are well established alternatives to single crystals and glasses for a variety of applications such as transparent armor and laser gain media. We describe our ongoing efforts in processing transparent ceramics for high thermal conductivity laser gain media. In addition, we will discuss an ultrafast pulsed laser procedure we developed for welding ceramics. The laser gain materials have comparable absorption/emission characteristics to rare earth doped YAG but improved thermal conductivity, allowing more laser power. The ceramic laser welding procedure relies on focusing light on interfaces to ensure an optical interaction volume in ceramics to stimulate linear/nonlinear absorption processes, causing localized melting rather than ablation. The key is the interplay between linear and nonlinear optical properties and laser energy–material coupling. We show that tuning optical transparency (absorption and scattering) allows focusing of laser light into the ceramics, placing the energy where it can cause localized melting at the interfaces. |
Proceedings Inclusion? |
Planned: |