Articles with "tunable ultra" as a keyword



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Applying double-mass pendulum oscillator with tunable ultra-low frequency in wave energy converters

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Published in 2021 at "Applied Energy"

DOI: 10.1016/j.apenergy.2021.117228

Abstract: Abstract Ocean waves are an ultra-low-frequency renewable energy source. Various point absorbers have been developed over the past decades as small-sized wave energy converters (WECs). However, realizing tunable and ultra-low frequencies in WECs remains an… read more here.

Keywords: frequency; low frequency; oscillator; ultra low ... See more keywords
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A tunable ultra-broadband terahertz absorber based on two layers of graphene ribbons

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Published in 2020 at "Optics and Laser Technology"

DOI: 10.1016/j.optlastec.2019.105853

Abstract: Abstract In this paper, a novel configuration of a tunable ultra-broadband terahertz (THz) absorber based on two layers of graphene ribbons and two different kinds of substrate materials has been proposed. The recently suggested equivalent… read more here.

Keywords: ultra broadband; tunable ultra; layers graphene; two layers ... See more keywords
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Achieving a tunable and ultra-broadband near-infrared emission in the Ga2-2xZnxGexO3:Cr3+ phosphor.

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Published in 2022 at "Dalton transactions"

DOI: 10.1039/d2dt02971e

Abstract: Near-infrared (NIR) spectroscopy (700-1100 nm) based on a phosphor-converted light-emitting diode (pc-LED) has multi-functional applications in bio-imaging, night-vision, and food quality analysis, simulating the development of efficient and ultra-broadband NIR phosphors. Herein, a series of… read more here.

Keywords: ultra broadband; phosphor; cr3; near infrared ... See more keywords
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Graphene-based tunable ultra-narrowband mid-infrared TE-polarization absorber.

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Published in 2017 at "Optics express"

DOI: 10.1364/oe.25.032080

Abstract: A graphene-based tunable ultra-narrowband mid-infrared TE-polarization absorber is proposed. The simulation results show that, the absorption peak can be tuned from 5.43896µm to 5.41418µm, by tuning the Fermi level of graphene from 0.2eV to 1.0eV.… read more here.

Keywords: narrowband; graphene; narrowband mid; tunable ultra ... See more keywords
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Tunable ultra-flat optical-comb-enabled, reconfigurable, and efficient coherent channelized receiver.

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Published in 2020 at "Optics letters"

DOI: 10.1364/ol.385458

Abstract: In this Letter, based on two advanced tunable ultra-flat optical frequency comb generators (T-FOCGs), a coherent channelized receiver with high channelized efficiency and reconfigurability is proposed. In the T-FOCG, the number of 1 dB comb… read more here.

Keywords: channelized receiver; ultra flat; tunable ultra; flat optical ... See more keywords