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 Tools annual

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 Tools monthly

Global: Zendy Plus monthly

Presents the access of premium content as premium feature

Premium Content

Global: Zendy Plus annual

Global: Zendy Free Plan

We report on fabricating high-fill-factor plano-convex spherical and squaremicro-lens arrays on fused silica glass surface using CO2 laser assistedreshaping technique. Initially, periodic micro-pillars have been encoded on theglass surface by means of a femtosecond laser beam. Afterwards, themicro-pillars are polished several times by irradiating a CO2 laser beam on topof the micro-pillars. Consequently, spherical micro-lens array with micro-lenssize of 50 um x 50 um and square micro-lens array with micro-lens size of 100um x 100 um are formed on fused silica glass surface. We also study theintensity distribution of light passed through the spherical micro-lens arrayengraved glass sample. The simulation result shows that, the focal length ofthe spherical micro-lens array is 35 um. Furthermore, we investigate theoptical properties of the micro-lens array engraved glass samples. The proposedCO2 laser based reshaping technique is simple and fast that shows promises infabrication arrays of smooth micro-lenses in various transparent materials.

Formation of plano-convex micro-lens array in fused silica glass using CO2 laser assisted reshaping technique