Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Effect of boundary continuity on nanosecond laser damage of nodular defects in high-reflection coatings

Not Accessible

Your library or personal account may give you access

Abstract

Two types of engineered nodules in Ta2O5/SiO2 high-reflection coatings were prepared using electron beam evaporation and an ion-assisted deposition processes to facilitate poor and good boundary continuity, respectively. The influence of nodular boundary continuity on their nanosecond laser damage characteristics was investigated through experimental studies, combined with 3D finite-difference time domain simulations and photo-thermal micro-characterizations. Better boundary continuity led to improved mechanical stability and higher ejection fluence of nodules, in accordance with the thermomechanical damage model. In contrast, the ejected nodules that initially had better boundary continuity exhibited higher localized absorption and lower damage growth fluence, which is attributed to the creation of mechanically induced electronic defects or stronger electric field intensity enhancement at the ejected nodules.

© 2017 Optical Society of America

Full Article  |  PDF Article
More Like This
Nanosecond laser-induced damage of nodular defects in dielectric multilayer mirrors [Invited]

Xinbin Cheng, Abudusalamu Tuniyazi, Jinlong Zhang, Tao Ding, Hongfei Jiao, Bin Ma, Zeyong Wei, Hongqiang Li, and Zhanshan Wang
Appl. Opt. 53(4) A62-A69 (2014)

Influence of composition and seed dimension on the structure and laser damage of nodular defects in HfO2/SiO2 high reflectors

Chaoyang Wei, Kui Yi, Zhengxiu Fan, and Jianda Shao
Appl. Opt. 51(28) 6781-6788 (2012)

Influence of nodular defects on the laser damage resistance of optical coatings in the femtosecond regime

Laurent Gallais, Xinbin Cheng, and Zhanshan Wang
Opt. Lett. 39(6) 1545-1548 (2014)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (3)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Tables (1)

You do not have subscription access to this journal. Article tables are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved