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   Articles with "beam shaping" as a keyword



Speckle-reduced holographic beam shaping with modified Gerchberg–Saxton algorithm

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recommendations! Published in 2019 at "Optics Communications"

DOI: 10.1016/j.optcom.2018.09.076

Abstract: Abstract Holographic laser beam shaping using a spatial light modulator can provide flexible adaptation of the intensity profile. However, speckle noise exists in the shaped beams, which reduces the beam quality seriously. In this paper,… read more here.

Keywords: saxton algorithm; gerchberg saxton; beam; phase ... See more keywords
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Dynamic laser beam shaping for material processing using hybrid holograms

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recommendations! Published in 2018 at "Optics and Laser Technology"

DOI: 10.1016/j.optlastec.2017.12.022

Abstract: Abstract A high quality, dynamic laser beam shaping method is demonstrated by displaying a series of hybrid holograms onto a spatial light modulator (SLM), while each one of the holograms consists of a binary grating… read more here.

Keywords: processing using; hybrid holograms; dynamic laser; laser beam ... See more keywords
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Alignment of electron optical beam shaping elements using a convolutional neural network.

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recommendations! Published in 2021 at "Ultramicroscopy"

DOI: 10.1016/j.ultramic.2021.113338

Abstract: A convolutional neural network is used to align an orbital angular momentum sorter in a transmission electron microscope. The method is demonstrated using simulations and experiments. As a result of its accuracy and speed, it… read more here.

Keywords: electron optical; neural network; beam shaping; convolutional neural ... See more keywords

Quantitative performance improvement using beam shaping plasma modulation for uranium detection in di-uranate using laser-induced breakdown spectroscopy

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recommendations! Published in 2024 at "Journal of Analytical Atomic Spectrometry"

DOI: 10.1039/d4ja00086b

Abstract: LIBS with beam shaping plasma modulation technology can reduce spectral interference and improve the quantitative performance of uranium in di-uranate. read more here.

Keywords: spectroscopy; plasma modulation; shaping plasma; beam shaping ... See more keywords

Elucidating the influence of laser beam shaping on melt pool characteristics in the selective laser melting of AlSi10Mg alloy

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recommendations! Published in 2025 at "Journal of Physics D: Applied Physics"

DOI: 10.1088/1361-6463/ae258f

Abstract: Selective Laser Melting (SLM) has emerged as an innovative technique for additive manufacturing, offering design freedom and net-shaped fabrication of complex metallic components. A critical yet often overlooked aspect is the laser beam profile used… read more here.

Keywords: laser; laser melting; beam; selective laser ... See more keywords

Controllable beam shaping of coherent and incoherent beams by a laser amplifier

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recommendations! Published in 2018 at "Laser Physics Letters"

DOI: 10.1088/1612-202x/aad943

Abstract: We propose the technique for a controllable manipulation of the transverse intensity distribution of an output beam by the temporal adjustment of a transverse gain profile in a laser amplifier. It was created by an… read more here.

Keywords: shaping coherent; output; controllable beam; laser amplifier ... See more keywords
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Electron beam shaping via laser heater temporal shaping

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recommendations! Published in 2021 at "Physical Review Accelerators and Beams"

DOI: 10.1103/physrevaccelbeams.24.110703

Abstract: Active longitudinal beam optics can help FEL facilities achieve cutting edge performance by optimizing the beam to: produce multi-color pulses, suppress caustics, or support attosecond lasing. As the next generation of superconducting accelerators comes online,… read more here.

Keywords: beam shaping; electron beam; laser heater; beam ... See more keywords

Beam Shaping of VCSEL Arrays Utilizing Liquid Crystal Spatial Light Modulation

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recommendations! Published in 2025 at "IEEE Photonics Technology Letters"

DOI: 10.1109/lpt.2025.3583264

Abstract: Beam shaping and uniformity are critical requirements in various optical applications, including laser processing, aesthetic treatments, medical therapies, holography, and optical communication. The Gerchberg-Saxton (GS) algorithm and the hybrid input-output (HIO) algorithm are widely used… read more here.

Keywords: liquid crystal; uniformity; beam; crystal spatial ... See more keywords

Code-Dependent Beam Shaping and Polarization Control by Binary Transmitarray

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recommendations! Published in 2023 at "IEEE Transactions on Antennas and Propagation"

DOI: 10.1109/tap.2023.3265460

Abstract: A code-dependent methodology is proposed to realize beam shaping and polarization control simultaneously by using binary transmitarray (BTA). The BTA unit elements are divided into two types, which are linearly polarized in orthogonal directions. By… read more here.

Keywords: code dependent; beam shaping; shaping polarization; methodology ... See more keywords

Deep Learning-Based Ultrasound Beam Shaping for Spatiotemporal Acoustic Holograms Generation

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recommendations! Published in 2023 at "IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control"

DOI: 10.1109/tuffc.2023.3264580

Abstract: Acoustical hologram generation can be achieved via controlled beam shaping by engineering the transmitted phases to create a desired pattern. Optically inspired phase retrieval algorithms and standard beam shaping methods assume continuous wave (CW) insonation,… read more here.

Keywords: beam; generation; beam shaping; deep learning ... See more keywords

Beam Shaping for Massive MIMO Systems With One-Bit Spatial $\Sigma -\Delta$ ADCs

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recommendations! Published in 2023 at "IEEE Transactions on Vehicular Technology"

DOI: 10.1109/tvt.2022.3208064

Abstract: One-bit quantization opens up opportunities for massive MIMO implementation using cheap and power-efficient radio-frequency front-ends, but unfortunately brings severe amplitude distortion. The spatial $\Sigma -\Delta$ structure is one important manner that can recover the amplitude… read more here.

Keywords: spatial sigma; beam; one bit; beam shaping ... See more keywords