Articles with "narrowband" as a keyword



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Semiconductor plasmon enhanced monolayer upconversion nanoparticles for high performance narrowband near-infrared photodetection

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Published in 2019 at "Nano Energy"

DOI: 10.1016/j.nanoen.2019.04.064

Abstract: Abstract Employing lanthanide doped upconversion nanoparticles (UCNPs) as near-infrared absorbing photoactive materials is a feasible conception for constructing high efficient and stable narrowband wavelength-selective photodetectors, but limited by its upconversion luminescence efficiency. Herein, we experimentally… read more here.

Keywords: semiconductor; csxwo3; nayf4 yb3; near infrared ... See more keywords
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Design of a remote and integrated Sagnac interferometer that can generate narrowband guided wave through the use of laser and effective optics to detect defects occurred in plates

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Published in 2020 at "Optics and Laser Technology"

DOI: 10.1016/j.optlastec.2019.105923

Abstract: Abstract To inspect the integrity of specimens that are moving or no space available to mount sensors on their surfaces, laser generated guided wave (GW) becomes the only feasible option. However, conventional GW generated by… read more here.

Keywords: narrowband; integrated sagnac; optics; sagnac interferometer ... See more keywords
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Filterless narrowband photodetectors employing perovskite/polymer synergetic layers with tunable spectral response

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Published in 2020 at "Organic Electronics"

DOI: 10.1016/j.orgel.2019.105417

Abstract: Abstract Spectrally selective light detection, especially the detection within desired spectral range, is crucial for many fields, such as image sensing, optical communication, climate monitoring and national defense. Conventional narrowband photodetectors with optical filters are… read more here.

Keywords: response; narrowband; employing perovskite; narrowband photodetectors ... See more keywords
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Narrowband Organic Photodiodes Based on Green Light Sensitive Squarylium

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Published in 2017 at "Journal of Physical Chemistry C"

DOI: 10.1021/acs.jpcc.7b03412

Abstract: Organic photodiodes (OPD) are becoming promising candidates for narrowband detection to meet new requirements on detectors, such as smaller size, higher resolution, lower power consumption, and the ability to interact with a variety of interfaces.… read more here.

Keywords: narrowband; light sensitive; green light; sensitive squarylium ... See more keywords
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Structurally Regulated Carbazole-Pyridine Derivatives Based on Space-Crowded Theory for Efficient Narrowband Ultraviolet Nondoped Organic Light-Emitting Diodes from the High-Lying Reverse Intersystem Crossing Process.

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Published in 2022 at "ACS applied materials & interfaces"

DOI: 10.1021/acsami.2c20806

Abstract: Achieving ultraviolet and narrowband emission simultaneously in nondoped organic light-emitting diodes (OLEDs) remains a tremendous challenge. Here, a "space-crowded donor-acceptor-donor" molecular design strategy is proposed for developing ultraviolet pure organic fluorophores by the nearby substituted… read more here.

Keywords: organic light; emitting diodes; narrowband; nondoped organic ... See more keywords
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Polarization-Independent, Narrowband, Near-IR Spectral Filters via Guided Mode Resonances in Ultrathin a-Si Nanopillar Arrays

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Published in 2019 at "ACS Photonics"

DOI: 10.1021/acsphotonics.8b01253

Abstract: We report the optical properties obtained through experiments, simulation, and theory of ultrathin ( read more here.

Keywords: nanopillar arrays; guided mode; polarization independent; narrowband ... See more keywords
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Spectral phase control of interfering chirped pulses for high-energy narrowband terahertz generation

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Published in 2019 at "Nature Communications"

DOI: 10.1038/s41467-019-10657-4

Abstract: Highly-efficient optical generation of narrowband terahertz radiation enables unexplored technologies and sciences from compact electron acceleration to charge manipulation in solids. State-of-the-art conversion efficiencies are currently achieved using difference-frequency generation driven by temporal beating of… read more here.

Keywords: narrowband; chirped pulses; generation; spectral phase ... See more keywords
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Perovskite photodetectors with both visible-infrared dual-mode response and super-narrowband characteristics towards photo-communication encryption application.

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Published in 2017 at "Nanoscale"

DOI: 10.1039/c7nr06193e

Abstract: Photo-communication has attracted great attention because of the rapid development of wireless information transmission technology. However, it is still a great challenge in cryptography communications, where it is greatly weakened by the openness of the… read more here.

Keywords: narrowband; communication; encryption; photo communication ... See more keywords
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High-Resolution Range-Doppler Maps by Coherent Extension of Narrowband Pulses

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Published in 2020 at "IEEE Transactions on Aerospace and Electronic Systems"

DOI: 10.1109/taes.2020.2965754

Abstract: The range resolution of radar is inversely proportional to the swept bandwidth. However, this bandwidth may not be available due to a variety of reasons, including spectrum congestion and lack of instantaneous bandwidth despite access… read more here.

Keywords: resolution; range; narrowband; range resolution ... See more keywords
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Compact, Frequency-Reconfigurable Filtenna With Sharply Defined Wideband and Continuously Tunable Narrowband States

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Published in 2017 at "IEEE Transactions on Antennas and Propagation"

DOI: 10.1109/tap.2017.2736535

Abstract: A compact, frequency-reconfigurable filtenna with sharp out-of-band rejection in both its wideband and continuously tunable narrowband states is presented. It is intended for use in cognitive radio applications. The wideband state is the sensing state… read more here.

Keywords: wideband continuously; narrowband states; compact frequency; narrowband ... See more keywords
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Highly Sensitive Narrowband Si Photodetector With Peak Response at Around 1060 nm

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Published in 2020 at "IEEE Transactions on Electron Devices"

DOI: 10.1109/ted.2020.3001245

Abstract: Photodetection at a wavelength of about 1060 nm is very important for applications including medical imaging, optical communication, and light detection and ranging. In this article, a self-powered near-infrared light detector with a narrowband at… read more here.

Keywords: photodetector; around 1060; near infrared; narrowband ... See more keywords