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This article aims to obtain structural and compositional characteristics of a crystalline silicon surface irradiated by femtosecond laser pulses in SF6, N2, air, and vacuum background atmospheres by performing transmission electron microscopy observation of 〈110〉 cross-sectional specimens. Conical microstructures covered with defective outer layers were formed in SF6 gas. The elemental sulfur dopants...
Carbon nanoparticles were prepared by pulsed laser ablation in argon gas for studying their formation, properties and applications. The nanoparticles were produced at different background pressures and different substrate temperatures, respectively. Micro-Raman spectroscopy, X-ray diffraction (XRD) and scanning electron microscopy (SEM) were used to analyze the samples. Nonlinear optical limiting...
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