Articles with "dynamically tunable" as a keyword



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Dynamically tunable implementation of electromagnetically induced transparency with two coupling graphene-nanostrips in terahertz region

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Published in 2018 at "Optics Communications"

DOI: 10.1016/j.optcom.2017.10.069

Abstract: Abstract In this paper, we numerically demonstrated a dynamically tunable implementation of electromagnetically induced transparency (EIT) response with two coupling graphene-nanostrips in terahertz region. Compared to the metal-based structures or separated graphene structures, the Fermi… read more here.

Keywords: dynamically tunable; coupling graphene; two coupling; tunable implementation ... See more keywords
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Dynamically Tunable All-Weather Daytime Cellulose Aerogel Radiative Supercooler for Energy-Saving Building.

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Published in 2022 at "Nano letters"

DOI: 10.1021/acs.nanolett.2c00844

Abstract: A passive cooling strategy without any electricity input has shown a significant impact on overall energy consumption globally. However, designing tunable daytime radiative cooler to meet requirement of different weather conditions is still a big… read more here.

Keywords: dynamically tunable; aerogel coolers; energy; tunable weather ... See more keywords
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A dynamically tunable discrete-element transmission line pulse generator

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Published in 2023 at "AIP Advances"

DOI: 10.1063/5.0125277

Abstract: The Frozen Wave Generator (FWG) is a megawatt-class radio frequency pulse forming network that converts DC input up to ones-of-GHz center frequency ( f c) by superposing an ensemble of alternately charged reactive storage elements.… read more here.

Keywords: transmission line; generator; element transmission; dynamically tunable ... See more keywords
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A Dynamically Tunable Microwave Absorber Based on Graphene

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Published in 2020 at "IEEE Transactions on Antennas and Propagation"

DOI: 10.1109/tap.2020.2972646

Abstract: In this article, a dynamically tunable graphene-based absorber in Ku-band is proposed for the first time, the center frequency of which can be continuously tuned while maintaining an excellent absorption performance. It consists of a… read more here.

Keywords: tunable microwave; graphene; frequency; microwave absorber ... See more keywords
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Broadband dynamically tunable terahertz absorber based on a Dirac semimetal.

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Published in 2020 at "Applied optics"

DOI: 10.1364/ao.389828

Abstract: In this paper, we propose a broadband tunable metamaterial absorber in the terahertz (THz) region. The absorber comprises a Dirac semimetal film, a dielectric layer, and a gold ground plane. Numerical results show that the… read more here.

Keywords: dynamically tunable; tunable terahertz; absorber; broadband dynamically ... See more keywords
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Bidirectional and dynamically tunable THz absorber with Dirac semimetal.

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Published in 2019 at "Optics express"

DOI: 10.1364/oe.27.031062

Abstract: Traditional absorbers are usually sandwich structures in which a metallic ground plane is employed to prevent the transmission. Such absorbers suffer from a major drawback that incident light can only irradiate from the front of… read more here.

Keywords: dynamically tunable; bidirectional dynamically; perfect absorption; dirac semimetal ... See more keywords
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Dynamically tunable coherent perfect absorption in topological insulators at oblique incidence.

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Published in 2021 at "Optics express"

DOI: 10.1364/oe.435440

Abstract: The effective engineering of light absorption has been the focus of intensive research to realize the novel optoelectronic devices based on a topological insulator, a unique topologically protected surface Dirac-state quantum material with excellent prospects… read more here.

Keywords: absorption; dynamically tunable; perfect absorption; coherent perfect ... See more keywords
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Dynamically Tunable and Multifunctional Polarization Beam Splitters Based on Graphene Metasurfaces

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Published in 2022 at "Nanomaterials"

DOI: 10.3390/nano12173022

Abstract: Based on coupled-mode theory (CMT) and the finite-difference time-domain (FDTD) approach, we propose a graphene metasurface-based and multifunctional polarization beam splitter that is dynamically tunable. The structure, comprising two graphene strips at the top and… read more here.

Keywords: dynamically tunable; polarization beam; tunable multifunctional; polarization ... See more keywords
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Flexible and dynamically tunable spoof surface plasmon polaritons attenuator integrated with graphene

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Published in 2019 at "Applied Physics Express"

DOI: 10.7567/1882-0786/ab25fb

Abstract: We proposed a flexible and dynamically tunable spoof surface plasmon polaritons (SSPPs) waveguide attenuator loaded with flexible graphene sheets. In this attenuator, a piece of graphene sandwich structure is deposited on the SSPPs waveguide to… read more here.

Keywords: surface plasmon; tunable spoof; graphene; flexible dynamically ... See more keywords