Surface Modification of Polymer Materials Induced by Laser Irradiation

Abstract

We report on the surface modification effects using allyl-diglycol CR39 polymer induced by laser irradiation at 157 nm F 2 laser (VUV) and 248 nm KrF laser. The motivation is to investigate the ablation effects on this polymer in optical waveguides application the ablation effects on this polymer in optical waveguides. Fabrication of waveguides has been observed using continuous wave (CW) at 244 nm argon ion laser. Ablation effects on the surface of this polymer have been characterized including ablation threshold at different wavelengths from the assorted depth of craters formed from UV pulsed laser. Application of this polymer in optical waveguide application is corroborated by the refractive index value on the CR39 channels that varied as fluences changed when using the continuous wave UV irradiation. A limit for upper fluence at the point where laser ablation originates on this polymer has also been determined.

Effects of Laser Irradiation on Adhesive Tribo-Performance of Eva/Hdpe/Ma-G-Pe/Ommt Blended Polymer Nanocomposites

“…Thin single step irradiated and annealed ultra-high molecular weight polyethylene hip liners also exhibited an increase in both wear rate and volume loss (Negra.,2016). Surface modification effects by laser irradiation on allyl-Di glycol CR39 developed the photo thermal effect mechanism due to localized heat generation, which was responsible for surface structure modification (Zakaria.,2016).…”

Meloxicam gyógyszerhatóanyag részecskeméret csökkentése impulzuslézeres ablációval

“…A lézeres abláció egyrészt lehet eszköz a felület megmunkálására [117]- [121], másrészt részecskék keltésére is alkalmas [122]- [124]. Elsősorban a részecskék keletkezhetnek a kilépő plazmafelhőből, ez az elsődleges részecskekeltés.…”