Results 11 to 20 of about 18,567 (217)

Quantum theory of polarimetry: From quantum operations to Mueller matrices [PDF]

open access: yesPhysical Review Research, 2020
Quantum descriptions of polarization show the rich degrees of freedom underlying classical light. While changes in polarization of light are well described classically, a full quantum description of polarimetry, which characterizes substances by their ...
Aaron Z. Goldberg
doaj   +2 more sources

The Imaging X-ray Polarimetry Explorer (IXPE)

open access: yesResults in Physics, 2016
The Imaging X-ray Polarimetry Explorer (IXPE) expands observation space by simultaneously adding polarization to the array of X-ray source properties currently measured (energy, time, and location).
Martin C. Weisskopf   +13 more
doaj   +2 more sources

Development of a portable high-Tc spherical neutron polarimetry device at the Oak Ridge National Laboratory [PDF]

open access: yesScientific Reports
Spherical neutron polarimetry is a powerful polarized neutron scattering technique used to determine complex magnetic structures which are only partly accessible by other methods.
Nicolas Silva   +9 more
doaj   +2 more sources

Polarimeters for the Detection of Anisotropy from Reflectance [PDF]

open access: yesMicromachines
Polarimetry is used to determine the Stokes parameters of a laser beam. Once all four S0,1,2,3 parameters are determined, the state of polarisation is established.
Shuji Kamegaki   +9 more
doaj   +2 more sources

Magnetic field properties inside the jet of Mrk 421. Multiwavelength polarimetry including the Imaging X-ray Polarimetry Explorer [PDF]

open access: yesAstronomy & Astrophysics, 2023
We conducted a polarimetry campaign from radio to X-ray wavelengths of the high-synchrotron-peak (HSP) blazar Mrk 421, including Imaging X-ray Polarimetry Explorer (IXPE) measurements on 2022 December 6-8. We detected X-ray polarization of Mrk 421 with a
Dawoon E. Kim   +135 more
semanticscholar   +1 more source

Determination of X-ray pulsar geometry with IXPE polarimetry [PDF]

open access: yesNature Astronomy, 2022
Using observations of X-ray pulsar Hercules X-1 by the Imaging X-ray Polarimetry Explorer we report a highly significant (>17σ) detection of the polarization signal from an accreting neutron star. The observed degree of linear polarization of ~10% is far
Victor Doroshenko   +93 more
semanticscholar   +1 more source

The Instrument of the Imaging X-Ray Polarimetry Explorer [PDF]

open access: yesAstronomical Journal, 2021
While X-ray spectroscopy, timing, and imaging have improved much since 1962 when the first astronomical nonsolar source was discovered, especially wi the launch of the Newton/X-ray Multi-Mirror Mission, Rossi/X-ray Timing Explorer, and Chandra/Advanced X-
P. Soffitta   +80 more
semanticscholar   +1 more source

Neural network assisted high-spatial-resolution polarimetry with non-interleaved chiral metasurfaces

open access: yesLight: Science & Applications, 2023
Polarimetry plays an indispensable role in modern optics. Nevertheless, the current strategies generally suffer from bulky system volume or spatial multiplexing scheme, resulting in limited performances when dealing with inhomogeneous polarizations. Here,
Chen Chen   +8 more
semanticscholar   +1 more source

Application of Microwave Polarimetry to the Characterization of Fiber Misalignment in Composites

open access: yesIEEE Open Journal of Instrumentation and Measurement, 2022
In this paper synthetic aperture radar (SAR) polarimetry techniques are applied to detect and characterize fiber misalignment in both carbon fiber sheets and glass fiber reinforced polymer (GFRP) composites. The principle behind SAR polarimetry technique
Matthew Dvorsky   +3 more
doaj   +1 more source

Crosstalk-free achromatic full Stokes imaging polarimetry metasurface enabled by polarization-dependent phase optimization

open access: yesOpto-Electronic Advances, 2022
Imaging polarimetry is one of the most widely used analytical technologies for object detection and analysis. To date, most metasurface-based polarimetry techniques are severely limited by narrow operating bandwidths and inevitable crosstalk, leading to ...
Yaxin Zhang   +12 more
semanticscholar   +1 more source

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