Results 1 to 10 of about 542 (178)

Metasurface-Based Polarimeters [PDF]

open access: yesApplied Sciences (Switzerland), 2018
The state of polarization (SOP) is an inherent property of light that can be used to gain crucial information about the composition and structure of materials interrogated with light.
Fei Ding   +2 more
exaly   +5 more sources

Residual Interpolation Integrated Pixel-by-Pixel Adaptive Iterative Process for Division of Focal Plane Polarimeters [PDF]

open access: yesSensors, 2022
Residual interpolations are effective methods to reduce the instantaneous field-of-view error of division of focal plane (DoFP) polarimeters. However, their guide-image selection strategies are improper, and do not consider the DoFP polarimeters’ spatial
Jie Yang   +4 more
doaj   +2 more sources

The Structural Types of the Polarization Detection Unit in Imaging Polarimeter Based on the Stokes Parameter Method [PDF]

open access: yesSensors
Bio-inspired imaging polarimeters have significant applications in the field of detecting the polarization state of skylights. The polarization detection principle of polarization detection units in polarimeters is mostly based on the Stokes parameter ...
Yuanhao Li   +5 more
doaj   +2 more sources

Testing entanglement of annihilation photons [PDF]

open access: yesScientific Reports, 2023
We present a new experimental study of the quantum entanglement of photon pairs produced in positron-electron annihilation at rest. Each annihilation photon has an energy that is five orders of magnitude higher than the energy of photons in optical ...
Alexander Ivashkin   +7 more
doaj   +2 more sources

On-chip mid-infrared photothermoelectric detectors for full-Stokes detection [PDF]

open access: yesNature Communications, 2022
Mid-infrared polarization-sensitive photodetectors are desired for several applications, such as chemical analysis and biomedical diagnosis. Here, the authors report on-chip polarimeters based on the combination of plasmonic chiral metamaterials and 2D ...
Mingjin Dai   +7 more
doaj   +2 more sources

Design of Partial Mueller-Matrix Polarimeters for Application-Specific Sensors [PDF]

open access: yesSensors
At a particular frequency, most materials and objects of interest exhibit a polarization signature, or Mueller matrix, of limited dimensionality, with many matrix elements either negligibly small or redundant due to symmetry.
Brian G. Hoover, Martha Y. Takane
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

2D computational photodetectors enabling multidimensional optical information perception [PDF]

open access: yesNature Communications
Multidimensional optical information, encompassing spatiotemporal intensity, spectral composition, and polarization, enables a wide range of advanced applications, including environmental monitoring, biomedical imaging, and optical communications.
Fakun Wang   +3 more
doaj   +2 more sources

A Novel Comparison of Møller and Compton Electron-Beam Polarimeters

open access: yesPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 2017
We have performed a novel comparison between electron-beam polarimeters based on Møller and Compton scattering. A sequence of electron-beam polarization measurements were performed at low beam currents (
Wouter Deconinck   +2 more
exaly   +3 more sources

Method of Directly Writing MPA on Photosensitive Surface of Detector Based on FIB [PDF]

open access: yesSensors
The division of focal plane (DoFP) polarization detector has great potential for the development of aerospace polarimeters, but the existing commercial DoFP polarization detector cannot satisfy all the missions due to the diversity of satellite payloads.
Anran Nie   +4 more
doaj   +2 more sources

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