Results 11 to 20 of about 2,709 (250)
Through the Looking Glass: Faraday Conversion in Turbulent Blazar Jets
Galaxies, 2016 Faint levels of circular polarization (Stokes V) have been detected in several relativistic jets. While typically less than a few percent, circular polarization can give us critical insight into the underlying nature of the jet plasma.
Nicholas Roy MacDonald
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HabEx polarization ray trace and aberration analysis [PDF]
Space Telescopes and Instrumentation 2018: Optical, Infrared, and Millimeter Wave, 2018 The flux difference between a terrestrial exoplanet and a much brighter nearby star creates an enormous optical design challenge for space-based imaging systems. Coronagraphs are designed to block the star’s flux and obtain a high-dynamic-range image of the exoplanet. The contrast of an optical system is calculated using the point spread function (PSF).
Davis, Jeffrey +3 more
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Scientific Reports, 2021 Electromagnetic (EM) metasurfaces are essential in a wide range of EM engineering applications, from incorporated into antenna designs to separate devices like radome.
Ali Lalbakhsh +4 more
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The Astrophysical Journal Supplement Series, 2023 The Event Horizon Telescope (EHT) has recently released high-resolution images of accretion flows onto two supermassive black holes. Our physical understanding of these images depends on the accuracy and precision of numerical models of plasma and ...
Monika A. Moscibrodzka +1 more
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Numerical Tool for Calculating Birefringence in Mirror-Substrates for Gravitational-Wave Detectors
Frontiers in Astronomy and Space Sciences, 2022 The influence of birefringence on rays entering and exiting a non-isotropic medium is a complex process that depends on its dielectric tensor, the orientation and geometry of the medium, the surrounding material, and the inclination of the incident ray ...
Simon Zeidler
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Single acquisition reconstruction of nonlinear susceptibility and Raman tensors at the diffraction limit [PDF]
APL PhotonicsQuantitative extraction of nonlinear optical tensors at the microscale typically requires sequential polarization scans, mechanical rotations, and careful correction of high-NA polarization distortions.
Volodymyr Multian +2 more
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A simple P-wave polarization analysis: its application to earthquake location
Annals of Geophysics, 1994 We present a method for hypocentral location which takes into account all three components of ground motion and not only the vertical one, as it is usually done by standard least-square techniques applied to arrival times.
M. Gasperini +4 more
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Matter and Radiation at Extremes, 2023 We propose a semi-analytical modeling of smoothed laser beam deviation induced by plasma flows. Based on a Gaussian description of speckles, the model includes spatial, temporal, and polarization smoothing techniques, through fits coming from ...
C. Ruyer +6 more
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Polarization ray tracing and polarization aberration compensation in reflective, astronomical telescopes [PDF]
Optical Modeling and Performance Predictions X, 2018 Assessing and optimizing polarization performance in the context of ray-based optical design can be challenging. We describe an approach to this problem that decouples polarization effects from optical system geometry for reflective systems.
Derek Sabatke +2 more
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IEEE Access, 2019 In this paper, the radiation features of indoor WiFi energy-harvesting antennas are analyzed, and the design guidelines that enhance receiving power are proposed.
Yen-Sheng Chen +2 more
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