Results 11 to 20 of about 4,177,848 (171)
Dynamic focus shaping with mixed-aperture coherent beam combining [PDF]
Optics Letters, 2021 A novel concept for dynamic focus shaping based on highly efficient coherent beam combining with micro-lens arrays (MLAs) as the combining element is presented. This concept allows us to control the power weights of diffraction orders by varying the absolute phases of an array of input beams. A proof-of-principle experiment is supported by simulations.
Prossotowicz, Maike +7 more
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Dynamic high power laser beam shaping in directed energy deposition [PDF]
Laser-based Directed Energy Deposition (DED-L) is an Additive Manufacturing (AM) technology to fabricate metallic components. A translating focused laser beam induces a melt pool in the workpiece in which simultaneously metal powder or wire is injected and which forms, after solidification, a track of deposited material on the workpiece. The mechanical
Bremer, Leon; id_orcid
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Polarization-controlled nonlinear computer-generated holography
Scientific Reports, 2023 Dynamic phase-only beam shaping with a liquid crystal spatial light modulator is a powerful technique for tailoring the intensity profile or wave front of a beam.
Lisa Ackermann +5 more
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Beam shaping technology and its application in metal laser additive manufacturing: A review
Journal of Materials Research and Technology, 2023 Laser additive manufacturing (AM) technology is widely applied in manufacturing critical components (e.g., rocket fuel nozzles, satellite antenna mounts and human implants, etc.) in automotive, medical, aerospace and other fields due to the advantages of
Jiang Bi +6 more
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Beam Shaping in Laser Powder Bed Fusion: Péclet Number and Dynamic Simulation
Metals, 2022 A uniform distribution of power density (energy flux) in a stationary laser beam leads to a decrease in the overheating of the material in the center of the laser beam spot during laser powder bed fusion and a decrease in material losses due to its ...
Sergey N. Grigoriev +6 more
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Applied Sciences, 2021 The latest research on applying beam oscillation in laser beam fusion cutting revealed significant process improvements regarding speed and quality.
Thomas Pinder, Cindy Goppold
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Ray mapping approach in double freeform surface design for collimated beam shaping
, 2022 Paper 995004, 8 S.Laser beam shaping enables the simultaneous redistribution of the irradiance and phase of a laser beam. The desired shape of the laser beam is thereby determined by the respective application.
Gross, H., Bösel, C.
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Micromachines, 2023 Digital programmable coding metasurfaces (DPCMs) have recently attracted enormous attention and have been broadly applied, owing to their ability to manipulate electromagnetic (EM) wave behaviours and programmable multi-functionality.
Aqeel Hussain Naqvi +3 more
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Integrated optical design for highly dynamic laser beam shaping with membrane deformable mirrors
, 2022 Paper 1009010, 8 S.The utilization of membrane deformable mirrors has raised its importance in laser materials processing since they enable the generation of highly spatial and temporal dynamic intensity distributions for a wide field of applications. To
Pütsch, O., Stollenwerk, J., Loosen, P.
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Microscopic applications of holographic beam shaping and studies of optically trapped aerosols [PDF]
, 2009 This thesis has two themes. Firstly, it concerns the original application of holographic beam shaping, employed through the methods associated with optical manipulation, to three microscopic fields of research.
Burnham, Daniel R.
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