Partially coherent light beam shaping via complex spatial coherence structure engineering
Advances in Physics: X, 2022 The techniques of optical beam shaping have enabled progress in a broad range of interdisciplinary science and engineering, owing to the unique properties and promising applications of their created structured light.
Yahong Chen, Yangjian Cai
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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
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Flat-Top Line-Shaped Beam Shaping and System Design [PDF]
Sensors, 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.
Che Liu, Yanling Guo
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Ultraviolet metasurface-enabled flat-top beam shaping with size preservation uniformity and broadband robustness [PDF]
Scientific ReportsUltraviolet lithography based on Gaussian beam sources plays a critical role in integrated circuit fabrication, yet the intrinsic strong central intensity and rapid edge decay of Gaussian beams often lead to blurred feature edges, tapered sidewalls, and ...
Wanting Li +8 more
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Influence of Lithography Process Parameters on Continuous Surface Diffractive Optical Elements for Laser Beam Shaping [PDF]
MicromachinesTo address the demand for laser beam-shaping techniques, we developed a one-step exposure process based on moving-mask lithography for the fabrication of a continuous-surface diffractive optical element (DOE) for laser beam shaping.
Wenjing Liu +6 more
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A One-Bit Programmable Multi-Functional Metasurface for Microwave Beam Shaping [PDF]
Micromachines, 2023 In this paper, we demonstrate a multi-functional metasurface for microwave beam-shaping application. The metasurface consists of an array of programmable unit cells, and each unit cell is integrated with one varactor diode. By turning the electrical bias
Wu Zhang +6 more
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Exploring five types of beam shaping using tiled-aperture coherent beam combining [PDF]
Communications EngineeringCoherent Beam Combination (CBC) presents a promising solution to circumvent the power-scaling limitations of High-Power Fiber Lasers (HPFLs) by spatially combining the outputs of multiple independently pumped fibres.
Yunhui Xie +4 more
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Fabrication of phase masks from amorphous carbon thin films for electron-beam shaping [PDF]
Beilstein Journal of Nanotechnology, 2019 Background: Electron-beam shaping opens up the possibility for novel imaging techniques in scanning (transmission) electron microscopy (S(T)EM). Phase-modulating thin-film devices (phase masks) made of amorphous silicon nitride are commonly used to ...
Lukas Grünewald +2 more
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Optics and Photonics News, 2003 Laser beam shaping, the art of controlling the irradiance and phase profile of a laser's output, is an enabling technology used in industrial applications including semiconductor lithography, circuit component trimming and laser printing.
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High-Uniformity Flat-Top Light Spot Based on a Dielectric Metasurface [PDF]
NanomaterialsWith the rapid development of laser processing and infrared imaging, the demand for flat-top beams with high uniformity has become increasingly urgent.
Xinxin Pu +6 more
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