Articles with "digital coding" as a keyword



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Anomalously Perfect Reflections Based on 3‐Bit Coding Metasurfaces

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Published in 2019 at "Advanced Optical Materials"

DOI: 10.1002/adom.201801742

Abstract: Herein, a new design method to realize anomalously perfect reflections based on digital coding metasurfaces is proposed. Previous studies on perfect reflections usually rely on impedance matching, which requires complicated analyses and calculations. Based on… read more here.

Keywords: anomalously perfect; digital coding; perfect reflections; coding metasurfaces ... See more keywords
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Space-time-coding digital metasurfaces

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Published in 2018 at "Nature Communications"

DOI: 10.1038/s41467-018-06802-0

Abstract: The recently proposed digital coding metasurfaces make it possible to control electromagnetic (EM) waves in real time, and allow the implementation of many different functionalities in a programmable way. However, current configurations are only space-encoded,… read more here.

Keywords: digital coding; space; space time; time ... See more keywords
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Arbitrary power allocation for multiple beams using amplitude- and phase-coded metasurfaces

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Published in 2021 at "Journal of Physics D: Applied Physics"

DOI: 10.1088/1361-6463/abdb0c

Abstract: Digital-coding metasurfaces provide a convenient method for designing metasurface-based functional devices. By delicately arranging the coding sequences, electromagnetic fields on the metasurfaces can be modulated for applications like wave-front engineering, amplitude controlling and polarization conversion.… read more here.

Keywords: multiple beams; digital coding; amplitude phase; physics ... See more keywords
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Manipulation of sub-terahertz waves using digital coding metasurfaces based on liquid crystals.

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Published in 2023 at "Optics express"

DOI: 10.1364/oe.486146

Abstract: This paper presents a novel sub-terahertz liquid crystal (LC) phase shifter based on digital coding metasurfaces. The proposed structure consists of metal gratings and resonant structures. They are both immersed in LC. The metal gratings… read more here.

Keywords: digital coding; phase shifter; coding metasurfaces; sub terahertz ... See more keywords
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Convolution operations on time-domain digital coding metasurface for beam manipulations of harmonics

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Published in 2020 at "Nanophotonics"

DOI: 10.1515/nanoph-2019-0538

Abstract: Abstract Time-domain digital coding metasurfaces have been proposed recently to achieve efficient frequency conversion and harmonic control simultaneously; they show considerable potential for a broad range of electromagnetic applications such as wireless communications. However, achieving… read more here.

Keywords: digital coding; domain digital; time; time domain ... See more keywords