Articles with "high spectral" as a keyword



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Ground-Based High Spectral Resolution Lidar Observation of Aerosol Vertical Distribution in the Summertime Southeast United States

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Published in 2017 at "Journal of Geophysical Research"

DOI: 10.1002/2016jd025798

Abstract: As part of the Southeast United States based Studies of Emissions & Atmospheric Composition, Clouds & Climate Coupling by Regional Surveys (SEAC4RS), and collinear with part of the Southeast Atmosphere Study (SAS), the University of… read more here.

Keywords: high spectral; southeast; united states; southeast united ... See more keywords
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Thin-Film Architectures with High Spectral Selectivity for Thermophotovoltaic Cells

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Published in 2018 at "ACS Photonics"

DOI: 10.1021/acsphotonics.8b00508

Abstract: Thermophotovoltaic (TPV) systems are a promising technology for distributed conversion of high-temperature heat to electricity. To achieve high conversion efficiency, the transport of sub-bandgap radiation between the thermal emitter and PV cell should be suppressed.… read more here.

Keywords: high spectral; sub bandgap; thin film; spectral selectivity ... See more keywords
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High-power, high-spectral-purity GaSb-based laterally coupled distributed feedback lasers with metal gratings emitting at 2 μm

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Published in 2019 at "Applied Physics Letters"

DOI: 10.1063/1.5080266

Abstract: We report on the fabrication of high-power, high-spectral-purity GaSb-based laterally coupled distributed feedback (LC-DFB) lasers emitting at 2 μm. Second-order Chromium-Bragg-gratings are fabricated alongside the ridge waveguide by lift off. Due to the introduction of gain… read more here.

Keywords: high spectral; high power; mode; spectral purity ... See more keywords
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Tunable low-coherence light source with high spectral brightness

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Published in 2021 at "Quantum Electronics"

DOI: 10.1070/qel17527

Abstract: Operation of a tunable tandem-type low-coherence light source with high spectral brightness based on commercially available optical elements (superluminescent diode, semiconductor optical amplifier, and bulk dwiffraction grating) is studied experimentally. A unique combination of the… read more here.

Keywords: source high; light source; low coherence; source ... See more keywords
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High Spectral Resolution Imaging Based on Dual-Camera System With Filter Wheel

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Published in 2022 at "IEEE Access"

DOI: 10.1109/access.2022.3166946

Abstract: High spectral and high spatial resolution imaging is necessary in optical imaging. However, the filter wheel imaging system which is composed of band pass filters obtains discrete spectral information, with high spatial resolution, but low… read more here.

Keywords: resolution; system; spectral resolution; filter wheel ... See more keywords
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A Single-Carrier Delay-and-Superposition Based High Spectral Efficiency Differential Chaos Shift Keying for Maritime Internet of Vessels

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Published in 2022 at "IEEE Access"

DOI: 10.1109/access.2022.3227625

Abstract: The fast growing Internet of Vessels (IoV) requires maritime communications to be more spectral efficient to make full use of the scarce maritime spectral resource, provide a high data transmission rate and support massive communication… read more here.

Keywords: efficiency differential; spectral efficiency; scds dcsk; efficiency ... See more keywords
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High Spectral Efficiency 400 Gb/s Transmission by Different Modulation Formats and Advanced DSP

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Published in 2019 at "Journal of Lightwave Technology"

DOI: 10.1109/jlt.2019.2932384

Abstract: We experimentally demonstrate probabilistically shaped 64-ary quadrature-amplitude-modulation (64QAM) 50-GHz-grid wavelength-division-multiplexing (WDM) transmission with a bit rate of 400-Gbit/s per channel over 3,600-km Raman-amplified ultra-large effective area fiber (ULAF). Our results show that the probabilistically shaped… read more here.

Keywords: advanced dsp; modulation; transmission; efficiency 400 ... See more keywords
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Demonstration of aerosol profile measurement with a dual-wavelength high-spectral-resolution lidar using a scanning interferometer.

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Published in 2022 at "Applied optics"

DOI: 10.1364/ao.451707

Abstract: Simple dual-wavelength high-spectral-resolution lidar at 355 and 532 nm with a scanning interferometer was developed for continuous observations of aerosol profiles. Scanning the interferometer periodically over a range of one fringe at 532 nm (1.5… read more here.

Keywords: resolution lidar; wavelength high; spectral resolution; scanning interferometer ... See more keywords
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Single-pixel imaging with high spectral and spatial resolution.

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Published in 2023 at "Applied optics"

DOI: 10.1364/ao.479069

Abstract: It has long been a challenge to obtain high spectral and spatial resolution simultaneously for the field of measurement and detection. Here we present a measurement system based on single-pixel imaging with compressive sensing that… read more here.

Keywords: pixel imaging; spatial resolution; spectral spatial; resolution ... See more keywords
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Measurement method of high spectral resolution lidar with a multimode laser and a scanning Mach-Zehnder interferometer.

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Published in 2017 at "Applied optics"

DOI: 10.1364/ao.56.005990

Abstract: A simple high spectral resolution lidar technique using a multi-longitudinal mode laser is proposed for measuring aerosol extinction and backscattering coefficients. A scanning interferometer having the same free spectral range as the mode spacing of… read more here.

Keywords: high spectral; laser; resolution lidar; spectral resolution ... See more keywords
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Dual concave grating anastigmatic spectrometer with high spectral resolution for remote sensing.

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Published in 2018 at "Applied optics"

DOI: 10.1364/ao.57.009789

Abstract: A dual concave grating imaging spectrometer with anastigmatic imaging has been presented for remote sensing. The optimal arrangements of the gratings and the addition of a cylindrical lens have been determined based on different aberrations… read more here.

Keywords: resolution; high spectral; concave grating; remote sensing ... See more keywords