posted on 2024-07-11, 10:39authored byLei Wang, Qi-Dai Chen, Xiao-Wen Cao, Ricardas Buividas, Xuewen Wang, Saulius JuodkazisSaulius Juodkazis, Hong-Bo Sun
The lossy nature of plasmonic wave due to absorption is shown to become an advantage for scaling-up a large area surface nanotexturing of transparent dielectrics and semiconductors by a self-organized sub-wavelength energy deposition leading to an ablation pattern - ripples - using this plasmonic nano-printing. Irreversible nanoscale modifications are delivered by surface plasmon polariton (SPP) using: (i) fast scan and (ii) cylindrical focusing of femtosecond laser pulses for a high patterning throughput. The mechanism of ripple formation on ZnS dielectric is experimentally proven to occur via surface wave at the substrate - plasma interface. The line focusing increase the ordering quality of ripples and facilitates fabrication over wafer-sized areas within a practical time span. Nanoprinting using SPP is expected to open new applications in photo-catalysis, tribology, and solar light harvesting via localized energy deposition rather scattering used in photonic and sensing applications based on re-scattering of SPP modes into far-field modes.
Funding
ARC | DP17010013
New landscape of non-equilibrium material phases : Australian Research Council (ARC) | DP170100131