English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

Ta 2 O 5 /SiO 2 high reflection (HR) interference coatings for λ∼1  μm offer superior performance at high irradiance conditions. However, these coatings are not good candidates for high peak power conditions in comparison to HfO 2 /SiO 2 multilayer stacks. Here we show that the modification of the top layers design of a quarter wave Ta 2 O 5 /SiO 2 high reflector leads to 4-5 fold increase in the laser damage fluence compared to a quarter wave (Ta 2 O 5 /SiO 2 ) 15 when tested at λ=1.03  μm using pulse durations of 0.19 and 4 ns and peak power densities of 43.5 and 216  GW/cm 2 . One of the designs achieved a laser damage threshold fluence of 174  J/cm 2 at 4 ns, which is 10% higher than that of a HfO 2 /SiO 2 quarter wave design.

Strategies to increase laser damage performance of Ta_2O_5/SiO_2 mirrors by modifications of the top layer design