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The Polarization Ray Tracing Calculus

open access: yesFrontiers in Optics 2014, 2014
The polarization ray tracing calculus facilitates the analysis of polarization dependent point spread functions and optical transfer functions, and can integrate many different polarization models including thin films, anisotropic materials, anisotropic multilayers, diffractive optics, and liquid crystals.
exaly   +3 more sources

A Miniaturized Design for a Terahertz Tri-Mirror CATR with High QZ Characteristics [PDF]

open access: yesSensors
This paper proposes a miniaturized design for a terahertz tri-mirror compact antenna test range (CATR) system, composed of a square-aperture paraboloid primary mirror with a side length of 0.2 m and two shaped mirrors with circular apertures of 0.06 m ...
Zhi Li   +3 more
doaj   +2 more sources

Analysis of polarization characteristics of freeform surface optical system [PDF]

open access: yesITM Web of Conferences, 2022
Freeform surfaces are widely used in off-axis optical systems with large aperture, large field of view, and long focal length. The polarization effect caused by the non-rotationally symmetrical shape has an impact on the system’s polarization imaging ...
Zhang Yilan, Shi Haodong, Jiang Huilin
doaj   +1 more source

Neutron adiabaticity and its impact on data analysis, illustrated for polarized GISANS [PDF]

open access: yesEPJ Web of Conferences, 2023
The significance of neutron spin adiabaticity in the data analysis of polarized Grazing Incidence Small Angle Neutron Scattering (GISANS) is discussed, with the aim of minimizing the number of simulation parameters of complex magnetic models within the ...
Stellhorn Annika   +6 more
doaj   +1 more source

Impact of the Accretion Disk Thickness on the Polarization of the Thermal Emission from Stellar Mass Black Holes

open access: yesThe Astrophysical Journal, 2023
The Imaging X-ray Polarimetry Explorer, launched in 2021 December, enables precision measurements of the energy-dependent polarization of the X-ray emission from stellar mass and supermassive black holes.
Andrew Thomas West, Henric Krawczynski
doaj   +1 more source

Modeling and Analysis of the Electro-Optic Modulator With Alignment Errors

open access: yesIEEE Access, 2020
Electro-optic modulators have enabled a wide range of emerging applications that place greater demands on the alignment of the modulators. In this paper, for the first time to the best of our knowledge, we construct a theoretical model to describe the ...
Peng Zhang, Xiaoping Du, Yishuo Song
doaj   +1 more source

A Mathematical Framework, Simulation, and Measurement of Harmonic Identification Systems

open access: yesIEEE Access, 2023
The main focus of this research paper is to develop a realistic mathematical framework to accurately characterize the performance of the harmonic identification system.
Jahangir Alam   +5 more
doaj   +1 more source

Polarization Aberration of a Non-Rotationally Symmetric Optical System With Freeform Surfaces

open access: yesIEEE Access, 2021
Owing to the wide application of freeform surfaces in off-axis optical systems with large apertures, large fields of view, and long focus distances, the polarization effects caused by non-rotationally symmetrical surfaces have a significant impact on the
Yilan Zhang, Haodong Shi, Huilin Jiang
doaj   +1 more source

Multi-Parameter Model-Based Polarimetric Calibration for Dual-Coded Spectral Polarization Imaging System

open access: yesPhotonics, 2023
A polarization analysis method based on a multi-parameter model is proposed to address the polarization effect analysis and calibration requirements of a dual-coded snapshot spectral polarization imaging system.
Jiayu Wang   +5 more
doaj   +1 more source

Joint assignment of frequency and polarization to minimize the chromatic number

open access: yesICT Express, 2017
In this letter, we propose graph theory-based heuristics for jointly assigning frequency and antenna polarization in a cluster-based tactical communication environment (e.g., military communications).
Bon-Hong Koo   +5 more
doaj   +1 more source

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