A Single Waveguide Spectrometer via Defect Scattering
IEEE Photonics JournalMiniaturized spectrometers show great application potential in biology, medicine, astronomy and so on. However, it is still challenging to obtain broadband spectrum and high spectral resolution simultaneously with limited size. In this study, we proposed
Xue Tong +6 more
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The making of robust and highly performing imaging spectropolarimeters for large solar telescopes
Astronomy & AstrophysicsWe discuss the requirements, concepts, simulations, implementation, and calibration of two dual Fabry-Perot (FPI)-based imaging spectropolarimeters, CRISP and CHROMIS, at the Swedish 1-m Solar Telescope, and CRISP2, which is under construction.
Scharmer G. B. +9 more
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Standing oscillations in a resonant sunspot atmosphere captured by integral field spectroscopy
Frontiers in Astronomy and Space SciencesThe solar atmosphere is replete with magnetohydrodynamic wave activity, with magnetic structures such as sunspots and pores able to channel wave energy flux efficiently into the outer atmosphere. Steep density and temperature gradients at the base of the
Glen Chambers +12 more
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An Interactive Multi-instrument Database of Solar Flares [PDF]
The Astrophysical Journal Supplement Series, 2017 Abstract Solar flares are complicated physical phenomena that are observable in a broad range of the electromagnetic spectrum, from radio waves to γ-rays. For a more comprehensive understanding of flares, it is necessary to perform a combined multi-wavelength analysis using observations from many satellites and ground-based observatories.
Viacheslav M Sadykov +3 more
openaire +2 more sources
Calibration Changes in EUV Solar Satellite Instruments [PDF]
Applied Optics, 1970 This paper reviews the problem of absolute photometric calibration in the extreme uv range with particular reference to a solar satellite instrument. EUV transfer standards, the use of predispersing spectrometers, and polarization effects at near normal incidence are discussed.
E M, Reeves, W H, Parkinson
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Spectral Deconvolution With Deep Learning: Removing the Effects of Spectral PSF Broadening
Frontiers in Astronomy and Space Sciences, 2020 We explore novel methods of recovering the original spectral line profiles from data obtained by instruments that sample those profiles with an extended or multipeaked spectral transmission profile.
Momchil Molnar +6 more
doaj +1 more source
Inter-calibration of nine UV sensing instruments over Antarctica and Greenland since 1980 [PDF]
Atmospheric Measurement Techniques, 2020 Nadir-viewed intensities (radiances) from nine UV sensing satellite instruments are calibrated over the East Antarctic Plateau and Greenland during summer.
C. J. Weaver +7 more
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On the Performance of Multi-Instrument Solar Flare Observations During Solar Cycle 24 [PDF]
Solar Physics, 2018 26 pages, 7 figures, 3 tables.
Ryan O. Milligan, Jack Ireland
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Modular Critical Element Recycling Platform Using a Nanoporous Additively Manufactured Gyroid
Advanced Engineering Materials, EarlyView.A modular recycling platform integrates 3D‐printed nanoporous gyroid structures to enable efficient critical element recovery. This system utilizes a hierarchical architecture, combining macroscopic channels with polymerization‐induced nanoscale porosity. By systematically tuning structural wall thickness and resin formulation, the platform achieves an
Xiangyu Gao +6 more
wiley +1 more source
Biomass Native Structure Into Functional Carbon‐Based Catalysts for Fenton‐Like Reactions
Advanced Functional Materials, EarlyView.This study indicates that eight biomasses with 2D flaky and 1D acicular structures influence surface O types, morphology, defects, N doping, sp2 C, and Co nanoparticles loading in three series of carbon, N‐doped carbon, and cobalt/graphitic carbon. This work identifies how these structural factors impact catalytic pathways, enhancing selective electron
Wenjie Tian +7 more
wiley +1 more source