Color marking of rough or smooth metal (Al, Cu, Ti) and semiconductor (Si) surfaces was realized via fem-tosecond laser fabrication of periodic surface nanorelief, representing one-dimensional diffraction gratingsyesBelgorod State Universit
One-dimensional quasi-periodic nanogratings with spacings in the range from 160 to 600 nm are written on a dry or wet titanium surface exposed to linearly polarized femtosecond IR and UV laser pulses with different surface energy densitiesye
Superimposed one-dimensional quasiperiodic gratings with multiple periods Λ≈110–800 nm well below or comparable to the pump laser wavelength of 744 nm, and ridge orientations perpendicular to the linear polarization of infrared femtosecond laser pulses, were fabricated after multiple near-threshold laser shots on a planar surface of quasimonocrystalline graphite in ambient airyesBelgorod State Universit
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