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8 maj 2022 · In this study, the circular Gaussian spot emitted by a laser light source is shaped into a rectangular flat-top beam to improve the scanning efficiency of a selective laser sintering scanning system.
1 sty 2000 · Sandia National Laboratories. Citations (24) References (10) Abstract. Industrial, military, medical, and research and development applications of lasers frequently require a beam with a...
22 sty 2024 · Our results show that laser beam shaping introduces a new design space, in addition to laser power and scan speed, which can be used to fabricate AM materials with tailored microstructures.
23 maj 2021 · Placing a Q plate into an interferometric setup, one can establish a vector beam laser, which produces vector beams by combining two optical vortex beams with opposite topological charges and orthogonal circular polarization .
A laser beam shape is typically defined by its irradiance distribution and phase. The latter is essential in determining the uniformity of a beam profile over its propagation distance. Therefore, beam shapers are designed to redistribute the irradiance and phase of an optical beam to attain a desired beam profile that is maintained along the ...
3 cze 2002 · Design of focal beam shaping system through irradiance and phase control. Focal beam shaping (FBS), or laser beam shaping at focus, is required in many laser applications. The most common approach is to use a phase element and a Fourier transform lens to generate at the….
8 gru 2018 · By the manipulation of minimizing the fitness function, refractive two-element beam shapers and a refractive single-element beam shaper have been designed. The analyses for the design results demonstrated the feasibility and validity of the PSO method in the design of laser beam shaping lenses.
