Articles with "beam propagation" as a keyword



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Scaling relations for a needle-like electron beam plasma from the self-similar behavior in beam propagation

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Published in 2017 at "Physics of Plasmas"

DOI: 10.1063/1.4998260

Abstract: Scaling relations of the main parameters of a needle-like electron beam plasma (EBP) to the initial beam energy, beam current, and discharge pressures are presented. The relations characterize the main features of the plasma in… read more here.

Keywords: beam propagation; plasma; scaling relations; electron ... See more keywords
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Single- and Multimode Beam Propagation Through an Optothermally Controllable Fano Clusters-Mediated Waveguide

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Published in 2017 at "Journal of Lightwave Technology"

DOI: 10.1109/jlt.2017.2766125

Abstract: Plasmonic waveguides are strategic compact structures consisting of nanoscale components and/or particles to carry the light. Here, by proposing a systematic and artificial configuration of fused nanoparticle assemblies, we develop an optothermally controllable plasmonic waveguide… read more here.

Keywords: single multimode; beam propagation; sub sub; optothermally controllable ... See more keywords
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Sensitivity-Based Structural Optimal Design With Bi-Directional Beam Propagation Method for Photonic Devices in High-Index-Contrast Waveguides

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Published in 2020 at "IEEE Photonics Journal"

DOI: 10.1109/jphot.2020.3029032

Abstract: This paper presents structural optimization based on sensitivity analysis exploiting a bi-directional beam propagation method (Bi-BPM) to design efficiently passive components in high-index-contrast optical waveguides. In this study, the Bi-BPM based on scaled-version Denman-Beavers iteration… read more here.

Keywords: propagation method; beam propagation; directional beam; sensitivity ... See more keywords
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Beam propagation simulation of phased laser arrays with atmospheric perturbations.

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Published in 2021 at "Applied optics"

DOI: 10.1364/ao.422337

Abstract: Directed energy phased array (DEPA) systems have been proposed for applications such as beaming optical power for electrical use on remote sensors, rovers, spacecraft, and future moon bases, as well as for planetary defense against… read more here.

Keywords: propagation; phased laser; beam propagation; simulation phased ... See more keywords
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ABCD transfer matrix model of Gaussian beam propagation in Fabry-Perot etalons.

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Published in 2022 at "Optics express"

DOI: 10.1364/oe.477563

Abstract: A numerical model of Gaussian beam propagation in planar Fabry-Perot (FP) etalons is presented. The model is based on the ABCD transfer matrix method. This method is easy to use and interpret, and readily connects… read more here.

Keywords: model gaussian; fabry perot; optics; beam propagation ... See more keywords
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Non-diffracting states at exceptional points.

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Published in 2021 at "Optics letters"

DOI: 10.1364/ol.411999

Abstract: We propose to use exceptional points (EPs) to construct diffraction-free beam propagation and localized power oscillation in lattices. We specifically consider two systems to utilize EPs for diffraction-free beam propagation, one in synthetic gauge lattices… read more here.

Keywords: states exceptional; exceptional points; oam beams; beam propagation ... See more keywords
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Development of a beam propagation method to simulate the point spread function degradation in scattering media.

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Published in 2019 at "Optics letters"

DOI: 10.1364/ol.44.004989

Abstract: Scattering is one of the main issues that limit the imaging depth in deep tissue optical imaging. To characterize the role of scattering, we have developed a forward model based on the beam propagation method… read more here.

Keywords: degradation; beam propagation; propagation method; method ... See more keywords