Results 11 to 20 of about 26,366,925 (292)
Characterization and correction of stray light in TROPOMI-SWIR [PDF]
Atmospheric Measurement Techniques, 2018 The shortwave infrared (SWIR) spectrometer module of the Tropospheric Monitoring Instrument (TROPOMI), on board the ESA Copernicus Sentinel-5 Precursor satellite, is used to measure atmospheric CO and methane columns.
P. J. J. Tol +11 more
doaj +3 more sources
NuSTAR Spectral Analysis beyond 79 keV with Stray Light [PDF]
The Astrophysical Journal, 2022 Abstract Due to the structure of the NuSTAR telescope, photons at a large off axis (>1°) can reach the detectors directly (stray light), without passing through the instrument optics. At these off-axis angles NuSTAR essentially turns into a collimated instrument and the spectrum can extend to energies above the Pt K edge (79 keV) of ...
G. Mastroserio +12 more
openaire +4 more sources
Analysis and Suppression of Crosstalk Stray Light in a Microlens Array Scanning and Searching System
Micromachines, 2023 The microlens array (MLA) system can aid in realizing fast beam deflection owing to the lateral displacement between arrays. The MLA system has the advantages of miniaturization and good functionality.
Zhiyang Lv, Yunhan Huang, Zhiying Liu
doaj +2 more sources
Stray Light Analysis and Suppression for an Infrared Fourier Imaging Spectrometer
PhotonicsTo improve the accuracy of infrared radiation characteristics measurement in the aviation field, an infrared Fourier transform imaging spectrometer based on a double-swing solid angle reflector was designed.
Chenzhao Ben +5 more
doaj +2 more sources
Effect of Grating Ruling Machine System Errors on Grating Spectral Performance
Applied Sciences, 2022 Grating groove functions scalar theory can describe the light source through the grating interference and diffraction effect of the physical phenomenon of splitting light.
Chao Yang, Xu Chen
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Design of a large field-of-view two-dimensional geometrical waveguide
Results in Optics, 2021 Geometrical waveguide has great advantages over conventional imaging systems, like larger field of view, larger exit pupil area, lower thickness and lighter weight.
Yao Zhou, Jufan Zhang, Fengzhou Fang
doaj +1 more source
Applied Sciences, 2023 The telescope is the core device for space gravitational wave detection. It is responsible for receiving signal light and emitting outgoing light simultaneously.
Benliang Sang +4 more
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The effect of instrumental stray light on Brewer and Dobson total ozone measurements [PDF]
Atmospheric Measurement Techniques, 2019 Dobson and Brewer spectrophotometers are the primary, standard instruments for ground-based ozone measurements under the World Meteorological Organization's (WMO) Global Atmosphere Watch program.
O. Moeini +8 more
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Effective Optical Scattering Range Determination Based on Ray Tracing
Applied Sciences, 2022 Surface imperfections or contamination on an optical smooth surface is usually inevitable and causes scattering. The directional information of the scattered ray can be related to the spatial frequency through the grating equation. On the other hand, the
Rongkuan Leng +4 more
doaj +1 more source
Comparison of global UV spectral irradiance measurements between a BTS CCD-array and a Brewer spectroradiometer [PDF]
Atmospheric Measurement Techniques, 2022 Spectral measurements of UV irradiance are of great importance for protecting human health as well as for supporting scientific research. To perform these measurements, double monochromator scanning spectroradiometers are the preferred devices thanks to ...
C. González +4 more
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