Articles with "orbital angular" as a keyword



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Multichannel Polarization-Controllable Superpositions of Orbital Angular Momentum States.

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Published in 2017 at "Advanced materials"

DOI: 10.1002/adma.201603838

Abstract: A facile metasurface approach is shown to realize polarization-controllable multichannel superpositions of orbital angular momentum (OAM) states with various topological charges. By manipulating the polarization state of the incident light, four kinds of superpositions of… read more here.

Keywords: polarization controllable; angular momentum; polarization; superpositions orbital ... See more keywords

Orbital Angular Momentum Multiplexing in Space–Time Thermoacoustic Metasurfaces

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Published in 2022 at "Advanced Materials"

DOI: 10.1002/adma.202202026

Abstract: Multiplexing technology with increased information capacity plays a crucial role in the realm of acoustic communication. Different quantities of sound waves, including time, frequency, amplitude, phase, and orbital angular momentum (OAM), have been independently introduced… read more here.

Keywords: time; orbital angular; frequency; angular momentum ... See more keywords

Coupling‐Mediated Selective Spin‐to‐Plasmonic‐Orbital Angular Momentum Conversion

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Published in 2019 at "Advanced Optical Materials"

DOI: 10.1002/adom.201900713

Abstract: Orbital angular momentum (OAM) has been recently introduced to plasmonics for generating plasmonic vortices with a helical wavefront, opening avenues for exotic on‐chip applications such as quantum information processing and communications. In previous demonstrations, carefully… read more here.

Keywords: angular momentum; plasmonic vortices; conversion; spin ... See more keywords

Manipulation of Orbital Angular Momentum Spectrum Using Shape‐Tailored Metasurfaces

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Published in 2020 at "Advanced Optical Materials"

DOI: 10.1002/adom.202001711

Abstract: Vortex beams carrying orbital angular momentum (OAM) are widely applied in various electromagnetic, optical, and quantum systems. A tailored OAM spectrum composed of several specific modes as expected holds a promise for expanding the degrees… read more here.

Keywords: angular momentum; shape tailored; orbital angular; using shape ... See more keywords

Multichannel Generations of Orbital Angular Momentum Modes with On‐Demand Characteristics on a Chip

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Published in 2021 at "Advanced Optical Materials"

DOI: 10.1002/adom.202101308

Abstract: The orthogonality among optical beams with different orbital angular momentum (OAM) modes presents a new perspective as independent data‐carrying channels for multiplexing and demultiplexing. In particular, the theoretically infinite topological charge of OAM beam promises… read more here.

Keywords: angular momentum; characteristics chip; orbital angular; demand characteristics ... See more keywords

Directionally Asymmetric in Orbital Angular Momentum Generation Using Single‐Layer Dielectric Janus Metasurfaces

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Published in 2024 at "Advanced Optical Materials"

DOI: 10.1002/adom.202401335

Abstract: Janus metasurfaces, offering versatile light manipulation contingent on incident direction, are explored across microwave to mid‐infrared spectra. Nonetheless, prior designs often resort to spatial multiplexing or vertical stacking, entailing complex fabrication. Metallic Janus metasurfaces, owing… read more here.

Keywords: angular momentum; orbital angular; single layer; janus ... See more keywords

3D Orbital Angular Momentum Nonlinear Holography

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Published in 2024 at "Advanced Optical Materials"

DOI: 10.1002/adom.202402836

Abstract: Orbital angular momentum (OAM), due to its theoretically orthogonal and unbounded helical phase index, is utilized as an independent physical degree of freedom for ultrahigh‐capacity information encryption. However, the imaging distance of an OAM hologram… read more here.

Keywords: angular momentum; nonlinear holography; orbital angular; momentum nonlinear ... See more keywords

Cyclic Evolution of Synergized Spin and Orbital Angular Momenta

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Published in 2024 at "Advanced Science"

DOI: 10.1002/advs.202409377

Abstract: Spin angular momentum (SAM) and orbital angular momentum (OAM) are fundamental physical characteristics described by polarization and spatial degrees of freedom, respectively. Polarization is a feature of vector fields while spatial phase gradient determines the… read more here.

Keywords: evolution; synergized spin; orbital angular; spin orbital ... See more keywords

Quantized Orbital Angular Momentums of Dipolar Magnons and Magnetoelectric Cavity Polaritons

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Published in 2024 at "Annalen der Physik"

DOI: 10.1002/andp.202400222

Abstract: Magnons are viewed as local deviations from the ordered state. Usually, the spin magnetic moment of magnons is considered. In a 3D‐confined structure of a magnetic insulator with magnetodipolar mode (MDM) oscillations, an orbital angular… read more here.

Keywords: confined structure; orbital angular; quantized orbital; momentums dipolar ... See more keywords

Algorithm design of a Rubik metamaterial for sextuple orbital angular momentums

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Published in 2023 at "Microwave and Optical Technology Letters"

DOI: 10.1002/mop.33693

Abstract: This letter presents a Rubik metamaterial with sextuple orbital angular momentum (OAM) capabilities. The design is based on a comprehensive algorithm that draws inspiration from the Rubik's cube. This metamaterial can generate multiple phased vortex… read more here.

Keywords: sextuple orbital; metamaterial sextuple; orbital angular; rubik ... See more keywords

Sub‐THz 3D printed lens based on diffractive neural network for low‐cost detection of orbital angular momentum states

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Published in 2023 at "Microwave and Optical Technology Letters"

DOI: 10.1002/mop.33700

Abstract: Accurate detection of orbital angular momentum (OAM) is one of the critical techniques for OAM‐related communications. However, conventional OAM identification approaches are often complicated and costly. In this letter, a convenient method based on diffraction… read more here.

Keywords: neural network; orbital angular; detection orbital; angular momentum ... See more keywords