Articles with "blackbody" as a keyword



Effect of Inhomogeneous Temperature in Chip‐Scale Infrared Thermal Sources: A Revisited Blackbody Radiation Formula with Experimental Validation

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Published in 2024 at "Advanced Electronic Materials"

DOI: 10.1002/aelm.202400674

Abstract: Miniature and low‐cost light sources are highly desirable for numerous optical microsystems. Among these, devices based on blackbody radiation of a filament heated at a few hundred degrees, perfectly fit with the requirements of producing… read more here.

Keywords: temperature; blackbody radiation; blackbody; experimental validation ... See more keywords

Investigations of CH∗ chemiluminescence and blackbody radiation in opposed impinging coal-water slurry flames based on an entrained-flow gasifier

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Published in 2018 at "Fuel"

DOI: 10.1016/j.fuel.2017.09.094

Abstract: Abstract The characteristics of excited CH radical (CH ∗ ) chemiluminescence and blackbody radiation in opposed impinging coal-water slurry (CWS) flames were investigated in this paper based on a bench-scale opposed multi-burner (OMB) gasifier. CH… read more here.

Keywords: radiation opposed; chemiluminescence blackbody; blackbody; blackbody radiation ... See more keywords

A simple topology metamaterial blackbody for visible light

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Published in 2017 at "Journal of Alloys and Compounds"

DOI: 10.1016/j.jallcom.2016.12.423

Abstract: Abstract Because they can absorb nearly all of the light incident upon them, metamaterial-based blackbodies have many potential applications and have been studied widely. However, the topological structure of most designed metamaterial blackbodies so far… read more here.

Keywords: blackbody; metamaterial blackbody; topology metamaterial; blackbody visible ... See more keywords

Acoustic blackbody through instability-induced softening

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Published in 2024 at "Communications Physics"

DOI: 10.1038/s42005-025-02166-2

Abstract: Perfect wave absorption across all wavelengths is forbidden by the causality principle. Here we demonstrate an approach that circumvents this fundamental limitation in acoustics by coupling unstable components to achieve zero static modulus. Both heuristic… read more here.

Keywords: blackbody instability; blackbody; acoustic blackbody; induced softening ... See more keywords

Carbon nanotube electron blackbody and its radiation spectra.

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Published in 2023 at "Proceedings of the National Academy of Sciences of the United States of America"

DOI: 10.1073/pnas.2209670120

Abstract: An optical blackbody is an ideal absorber for all incident optical radiation, and the theoretical study of its radiation spectra paved the way for quantum mechanics (Planck's law). Herein, we propose the concept of an… read more here.

Keywords: carbon nanotube; electron; blackbody; radiation spectra ... See more keywords
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Quantum blackbody thermometry

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Published in 2020 at "New Journal of Physics"

DOI: 10.1088/1367-2630/abe8f5

Abstract: Blackbody radiation sources are calculable radiation sources that are frequently used in radiometry, temperature dissemination, and remote sensing. Despite their ubiquity, blackbody sources and radiometers have a plethora of systematics. We envision a new, primary… read more here.

Keywords: blackbody; physics; blackbody thermometry; quantum blackbody ... See more keywords

Detecting Acoustic Blackbody Radiation with an Optomechanical Antenna.

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Published in 2020 at "Physical review letters"

DOI: 10.1103/physrevlett.125.120603

Abstract: Nanomechanical systems are generally embedded in a macroscopic environment where the sources of thermal noise are difficult to pinpoint. We engineer a silicon nitride membrane optomechanical resonator such that its thermal noise is acoustically driven… read more here.

Keywords: detecting acoustic; acoustic blackbody; blackbody radiation; temperature ... See more keywords
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Classical Physics and Blackbody Radiation.

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Published in 2022 at "Physical review letters"

DOI: 10.1103/physrevlett.128.134101

Abstract: We investigate the properties of the blackbody spectrum by direct numerical solution of the classical equations of motion of a one-dimensional model that contains the essential general features of the field-matter interaction. Our results, which… read more here.

Keywords: physics blackbody; physics; classical physics; blackbody radiation ... See more keywords

On the Reflectivity Measurements of Microwave Blackbody in Bistatic Near-Field Configuration

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Published in 2021 at "IEEE Transactions on Antennas and Propagation"

DOI: 10.1109/tap.2021.3083762

Abstract: Determining the total reflectivity of a manufactured microwave blackbody is a significant problem for the microwave radiometer calibration. In this work, the authors report the progress in testing the standard facility for microwave blackbody reflectivity… read more here.

Keywords: facility; reflectivity; total reflectivity; microwave blackbody ... See more keywords

An Improved Blackbody Calibration Cadence for CYGNSS

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Published in 2022 at "IEEE Transactions on Geoscience and Remote Sensing"

DOI: 10.1109/tgrs.2022.3165001

Abstract: An improved blackbody calibration procedure is developed, implemented, and tested for the cyclone global navigation satellite system (CYGNSS). Previously, CYGNSS calibrated its receivers once every minute to account for temperature-induced gain fluctuations. The time spent… read more here.

Keywords: improved blackbody; calibration; duty cycle; cadence ... See more keywords

A Large-Aperture Remote Sensing Camera Calibration Method Based on Stellar and Inner Blackbody

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Published in 2022 at "IEEE Transactions on Geoscience and Remote Sensing"

DOI: 10.1109/tgrs.2022.3218984

Abstract: Radiometric calibration of satellites is one of the core technologies for analyzing satellite data quantitatively. For large-aperture remote sensing cameras, the blackbody is placed in the rear optical path due to its weight and size.… read more here.

Keywords: remote sensing; inner blackbody; calibration; large aperture ... See more keywords