Results 11 to 20 of about 91,859 (302)
Opticks : GPU Optical Photon Simulation for Particle Physics using NVIDIA® OptiXTM [PDF]
EPJ Web of Conferences, 2019 Opticks is an open source project that integrates the NVIDIA OptiX GPU ray tracing engine with Geant4 toolkit based simulations. Massive parallelism brings drastic performance improvements with optical photon simulation speedup expected to exceed 1000 ...
Blyth Simon
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Modeling physical optics phenomena by complex ray tracing [PDF]
Optical Engineering, 2015 Physical optics modeling requires propagating optical wave fields from a specific radiometric source through complex systems of apertures and reflective or refractive optical components, or even complete instruments or devices, usually to a focal plane or sensor.
James E. Harvey +2 more
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Black hole shadow with soft hairs
Journal of High Energy Physics, 2022 Light bending by the strong gravity around the black hole will form the so-called black hole shadow, the shape of which can shed light on the structure of the near-horizon geometry to possibly reveal novel physics of strong gravity and black hole.
Feng-Li Lin, Avani Patel, Hung-Yi Pu
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Propagation and Focusing Properties of Vortex Beams Based on Light Ray Tracing
Frontiers in Physics, 2022 By using the ray-tracing method based on geometric optics, we studied the propagating and focusing characteristics of vortex beams with a top-hat intensity distribution.
Meng-Qiang Cai +4 more
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Doppler Modeling and Simulation of Train-to-Train Communication in Metro Tunnel Environment
Sensors, 2022 The communication system of urban rail transit is gradually changing from train-to-ground (T2G) to train-to-train (T2T) communication. The subway can travel at speeds of up to 200 km/h in the tunnel environment, and communication between trains can be ...
Pengyu Zhao +4 more
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Optimization of double drive pulse pumping in Ne-like Ge x-ray lasers [PDF]
, 1998 Pumping of the Ne-like Ge x-ray laser with two 100 ps duration pulses (a prepulse and main pulse) is investigated using a fluid and atomic physics code coupled to a 3D ray tracing postprocessor code.
Demir, A +4 more
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Ray-optical refraction with confocal lenslet arrays [PDF]
, 2008 Two parallel lenslet arrays with focal lengths f1 and f2 that share a common focal plane (that is, which are separated by a distance f1+f2) can refract transmitted light rays according to Snell's law, but with the 'sin's replaced with 'tan's. This is the
+10 more
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RadioPropa - A Modular Raytracer for In-Matter Radio Propagation [PDF]
, 2018 Experiments for radio detection of UHE particles such as e.g. ARA/ARIANNA or NuMoon require detailed understanding of the propagation of radio waves in the surrounding matter. The index of refraction in e.g.
Winchen, Tobias
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A Stratified Acoustic Model Accounting for Phase Shifts for Underwater Acoustic Networks
Sensors, 2013 Accurate acoustic channel models are critical for the study of underwater acoustic networks. Existing models include physics-based models and empirical approximation models.
Victor O. K. Li, Lin Zhang, Ping Wang
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2D Ray Tracing Analysis of a Dynamic Metasurface Antenna as a Smart Motion Detector
IEEE Access, 2019 We present a ray-tracing analysis of a smart motion detector based on a dynamically reconfigurable metasurface antenna (DMA). A DMA consists of an array of metamaterial radiators excited by a single-port waveguide or cavity.
Oren S. Mizrahi +4 more
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