| About this Abstract |
| Meeting |
Materials Science & Technology 2019
|
| Symposium
|
Ceramic and Crystal Materials for Optics and Photonics
|
| Presentation Title |
Intriguing Optical Phenomena in Garnet Transparent Ceramic |
| Author(s) |
Farida Selim, Sahil Agarwal, Le Zhang, Yiquan Wu |
| On-Site Speaker (Planned) |
Farida Selim |
| Abstract Scope |
Transparent ceramics (TC) are emerging as future materials for laser, scintillation and illumination. They represent new material systems with intriguing optical phenomena. In this work, these phenomena and their origins will be presented; they include unusual temperature dependence of photoluminescence and light induced permanent change in the microstructure of garnet transparent ceramics.
UV light leads to significant changes in the microstructure and optical properties of TC. It was found that the solarization induced by UV irradiation is associated with a change in the structure and size of defect clusters due to lattice relaxation. Therefore, this work shows that UV irradiation leads not only to a change in the charge state of defects, but also to a permanent change in defect structure and size. It significantly affects the optical properties of transparent ceramics and its performance in lasing and optical applications. These results are crucial for advancing transparent ceramics technology. |