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
OSA Recommended Articles
Effect of nanosecond laser pre-irradiation on the femtosecond laser-induced damage of Ta2O5/SiO2high reflector

Shunli Chen, Yuan’an Zhao, Dawei Li, Hongbo He, and Jianda Shao
Appl. Opt. 51(10) 1495-1502 (2012)

Improving laser damage resistance of 355  nm high-reflective coatings by co-evaporated interfaces

Huanbin Xing, Meiping Zhu, Yingjie Chai, Kui Yi, Jian Sun, Yun Cui, and Jianda Shao
Opt. Lett. 41(6) 1253-1256 (2016)

High laser-resistant multilayer mirrors by nodular defect planarization [Invited]

Christopher J. Stolz, Justin E. Wolfe, John J. Adams, Marlon G. Menor, Nick E. Teslich, Paul B. Mirkarimi, James A. Folta, Regina Soufli, Carmen S. Menoni, and Dinesh Patel
Appl. Opt. 53(4) A291-A296 (2014)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

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

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 OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA 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 OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA 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 OSA member, or as an authorized user of your institution.

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

Metrics

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

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