Presentation
Control of the plasmonic contribution in the generation of LIPSS with a single laser pulse on pre-structured fused silica surfaces
04/2024
Web link: https://www.spiedigitallibrary.org/conference-proceedings-of-spie/PC13005/PC130050F/Control-of-the-plasmonic-contribution-in-the-generation-of-LIPSS/10.1117/12.3022303.short
Organisation: SPIE
Event name: SPIE Photonics Europe 2024 - Conference: Lasers and Photonics for Advanced Manufacturing
Description
We exploited known effects of surface plasmon polariton (SPP) coupling into structured surfaces to suppress Laser-induced Periodic Surface Structures (LIPSS) growing around a hole-shaped seed structure. Holes ranging from 200 nm to 1500 nm in diameter were first created in the surface of a fused silica sample and then irradiated with a single femtosecond laser pulse (800 nm, 30 fs). For small diameters, Type-I LIPSS, typically related to metallic materials, appeared around the seed structure. For seed diameters around the laser wavelength, where the SPP coupling is hindered, the LSFL-I vanished. For larger diameters, they reappeared accompanied by additional LSFL-II, which have perpendicular orientation and are typical for dielectrics. Selectively deactivating SPP contribution to LIPSS generation can help elucidate the underlying processes, which are still a matter of debate.
