Comparison of aging effects in hafnia and titania thin films on the laser damage resistance of high reflection coatings for 1054 nm
| Autor: | Damon E. Kletecka, Ella Suzanne Field |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Materials science
biology business.industry 02 engineering and technology Laser Hafnia biology.organism_classification 01 natural sciences Electron beam physical vapor deposition Fluence law.invention 010309 optics 020210 optoelectronics & photonics Optics Optical coating Reflection (mathematics) Laser damage law 0103 physical sciences 0202 electrical engineering electronic engineering information engineering Composite material Thin film business |
| Zdroj: | Laser-Induced Damage in Optical Materials 2017. |
| Popis: | Optical coatings deposited using electron beam evaporation are subject to aging effects that change the spectral characteristics of the optical coating. The aim of this study was to determine whether aging effects can also negatively impact the laser damage resistance of an optical coating. Maintaining high resistance to laser damage is particularly important for the performance of high fluence laser systems. In 2013, we deposited different high reflection coatings for 1054 nm containing HfO2/TiO2/SiO2 layers. For this study, we re-measured the laser damage thresholds of these coatings at 3.5 ns to determine if aging effects cause the laser damage threshold to decline, and to compare whether HfO2 or TiO2 is superior in terms of long-term laser damage resistance. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|