Repeated ultrafast laser pulses drive nickel surfaces through phases in which nanoscale pattern complexity and light absorption rise together, which the authors read as a material-level learning process.
For a given series, after N double pulses, these maps show variations based on the alignment of the structures with the electric field ⃗E
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Photonic Learning in Ultrafast Laser-Induced Complexity
Repeated ultrafast laser pulses drive nickel surfaces through phases in which nanoscale pattern complexity and light absorption rise together, which the authors read as a material-level learning process.