Anti-Reflection Nanostructures on Tempered Glass by Dynamic Beam Shaping [PDF]
Micromachines, 2021 Reflectivity and surface topography of tempered glass were modified without any thermal damage to the surroundings by utilizing 1.7 ps ultrashort pulsed laser on its fundamental wavelength of 1030 nm.
Petr Hauschwitz +7 more
doaj +6 more sources
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.
Daniel Flamm +2 more
exaly +4 more sources
Beam shaping techniques for pulsed laser ablation in liquids: Unlocking tunable control of nanoparticle synthesis in liquids [PDF]
Beilstein Journal of NanotechnologyNanoparticle synthesis via pulsed laser ablation in liquids has gained prominence as a versatile and environmentally friendly approach for producing ligand-free colloids with controlled composition, size, and morphology.
Sergio Molina-Prados +5 more
doaj +2 more sources
Ultrathin Microlens Arrays for Dynamic Beam Shaping Based on 3D Lithography [PDF]
MicromachinesConventional microlens arrays (MLAs) are often constrained by their static focal properties, which limit post-fabrication adaptability in dynamic optical systems.
Ruiqi Cheng +5 more
doaj +2 more sources
Dynamically reprogrammable nonlinear Pancharatnam–Berry phase via ferroelectric nematic liquid crystals: a new paradigm for reconfigurable nonlinear optics [PDF]
Light: Science & ApplicationsA dynamically programmable, nonlinear beam-shaping and steering system is demonstrated, based on photopatterned, electrically controlled, ion-doped liquid ferroelectrics.
Shuang Zhang
doaj +2 more sources
Reconfigurable dynamic beam shaping in seeded frequency doubling
Optics Letters, 2001 A new method that allows simultaneous frequency doubling and dynamic shaping of a Gaussian beam into a variety of light patterns is introduced. The novel technique is based on the controllable generation of multiple-vortex patterns in seeded schemes. Applications include the generation of dynamic patterns of frequency-doubled, coherent optical tweezers.
Gabriel Molina-Terriza, Lluís Torner
exaly +5 more sources
Laser welding of Al6061 alloy with dynamic beam shape
International Journal of Lightweight Materials and ManufactureModern laser systems can greatly enhance the technological capabilities of welding processes. This paper examines the laser welding of the Aluminum 6061 alloy using a 14 kW fiber laser equipped with Optical Phase Array (OPA) technology, which allows for ...
Aleksey Kovalevsky +5 more
doaj +2 more sources
A hybrid analytical–optimization framework for sidelobe suppression and beamwidth control in linear antenna arrays [PDF]
Scientific ReportsThis paper presents a novel hybrid analytical–optimization framework for sidelobe suppression and beamwidth control in uniform linear antenna arrays (ULAAs). The primary objective is to achieve significant sidelobe level (SLL) reduction while maintaining
Ahmed M. Elkhawaga +2 more
doaj +2 more sources
Guide to a Deterministic Control of Laser Materials Processing with Dynamic Beam Shaping
Journal of Manufacturing and Materials ProcessingDynamic beam shaping opens new possibilities for improving the quality and productivity of industrial laser material processing applications such as welding and cutting.
Rudolf Weber +8 more
doaj +2 more sources
Tunable Chiral Terahertz Wave Absorption and Beam Manipulation Based on Vanadium Dioxide Metasurfaces [PDF]
NanomaterialsChiral metasurfaces exhibit enormous potential in optical applications, and their integration with phase-change material vanadium dioxide (VO2) provides a novel pathway for dynamic regulation.
Li Luo +16 more
doaj +2 more sources