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Article
Space-Selective Precipitation of Au Nanoparticles Inside Silica Gel
Au colloids were prepared by irradiation with a Nd:YAG laser. Au nanoparticles were characterized by absorption spectra, transmission electron microscopy (TEM) and X-ray diffraction (XRD) analysis. It is found...
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Article
Modulation of dry tribological property of stainless steel by femtosecond laser surface texturing
We reported on the modification of tribological properties of stainless steel by femtosecond laser surface microstructuring. Regular arranged micro-grooved textures with different spacing were produced on the ...
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Article
Azimuthal angle- and scanning pitch-dependent colorization of metals by ultrashort laser pulses
We report the modification of optical properties of 304 stainless steel surfaces by femtosecond laser direct writing with different scanning pitches. Regularly arranged ripples with a spatial period of ~700 nm...
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Article
Laser-induced periodic surface structures on 6H-SiC single crystals using temporally delayed femtosecond laser double-pulse trains
In this paper, a time-delay-adjustable double-pulse train with 800-nm wavelength, 200-fs pulse duration and a repetition rate of 1 kHz, produced by a collinear two-beam optical system like a Mach–Zehnder inter...
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Article
Equivalent power densities model for multi-pulse ultrashort pulsed laser processing
Ultrashort pulsed laser, due to its extremely high peak power density, has been widely used for high precision, rapid and programmable manufacture. Several models, such as two-temperature model (TTM) and a mol...