Correlation between Coating Adhesion and Damage Threshold: Simple Method of Reliability Assessment for Optoelectronic Applications

• 作者: Dong-Soo Shin Jongwoo Park
• 来源期刊: 光学与光子学期刊(英文)
• 学科: 医学
• 关键词: Optical COATING BOILING Water Test Damage THRESHOLD ADHESION HIGH-POWER Laser
• 年，卷（期）: 2015,（4）
• 页码范围: 119-124
• 页数: 6页
• 分类号: R73

摘要

It is demonstrated that inherent coating adhesion and damage threshold are correlated for Ta2O5 and HfO2 coatings widely used in optoelectronic devices. By utilizing a newly proposed 1-h boiling water test combined with the optical aging under high-power laser irradiation, we show that an optical coating that survives the 1-h boiling water test withstands the damage threshold, ensuring the field service life even in harsh environments. Besides the standard evaluation methods, which may have limitations for applications required in harsh environments, the 1-h boiling water test can serve as an alternative method of reliability assessment for optical coatings. A heuristics herein can be used as a gating item for qualification of optical coatings for various applications.