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20 June 2024 Control of the plasmonic contribution in the generation of LIPSS with a single laser pulse on pre-structured fused silica surfaces
Bastian Zielinski, Cristian Sarpe, Ramela Elena Ciobotea, Arne Senftleben, Thomas Baumert, Camilo Florian
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Proceedings Volume PC13005, Laser + Photonics for Advanced Manufacturing ; PC130050F (2024) https://doi.org/10.1117/12.3022303
Event: SPIE Photonics Europe, 2024, Strasbourg, France
Abstract
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.
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Bastian Zielinski, Cristian Sarpe, Ramela Elena Ciobotea, Arne Senftleben, Thomas Baumert, and Camilo Florian "Control of the plasmonic contribution in the generation of LIPSS with a single laser pulse on pre-structured fused silica surfaces", Proc. SPIE PC13005, Laser + Photonics for Advanced Manufacturing , PC130050F (20 June 2024); https://doi.org/10.1117/12.3022303
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KEYWORDS
Pulsed laser operation
Silica
Beam diameter
Plasmonics
Ultrafast phenomena
Dielectric polarization
Dielectrics
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