Beyond the Microscale: Advances in Surface Nanopatterning by Laser-Driven Self-Organization
Résumé
Designing complex local properties that seamlessly integrate efficient
functions into processed materials presents a formidable challenge. A
promising solution has emerged in the form of ultrafast laser-surface
structuring. Through time-controlled polarization ultrafast irradiation at the
picosecond timescale, spontaneous self-organization of surfaces can be
induced. The thermal gradient length scale unfolds on the micro- and
nanoscale, instigating thermoconvection that leads to structured surfaces
upon quenching. Convective instabilities dynamically shape intricate yet
self-regulated periodic relief structures. The ability to achieve laser-induced
self-organization in both surface dimensions holds immense scientific
importance, as it unlocks the potential to create uniform periodic 2D patterns
by harnessing the inherent regulation of nonlinear dynamics processes in
fluids. This comprehensive review explores recent advances in understanding
and leveraging ultrafast laser-induced self-organization for precise patterning
across versatile scales and applications. The insights herein hold the potential
to drive significant advancements in nanoscale manufacturing through 2D
laser-induced periodic surface structures.
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