Results 51 to 60 of about 56,080 (199)
Time-reversed optical focusing through scattering media by digital full phase and amplitude recovery using a single phase-only SLM [PDF]
Journal of Innovative Optical Health Sciences, 2015 Focusing light though scattering media beyond the ballistic regime is a challenging task in biomedical optical imaging. This challenge can be overcome by wavefront shaping technique, in which a time-reversed (TR) wavefront of scattered light is generated
Qiang Yang, Xinzhu Sang, Daxiong Xu
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A Tutorial on the Classical Theories of Electromagnetic Scattering and Diffraction
Nanophotonics, 2020 Starting with Maxwell’s equations, we derive the fundamental results of the Huygens-Fresnel-Kirchhoff and Rayleigh-Sommerfeld theories of scalar diffraction and scattering.
Mansuripur Masud
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AN INTEGRAL EQUATION FOR SCATTERING AMPLITUDES
Physical Review Letters, 1969 We outline a dynamical scheme for studying Regge behavior of scattering amplitudes. It is based on unitarity and the concept of short-range momentum-space correlations in high-energy processes.
Chew, G. F. +2 more
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2D Spin-Dependent Diffraction of Electrons From Periodical Chains of Nanomagnets
Applied Sciences, 2012 The scattering of the unpolarized beams of electrons by nanomagnets in the vicinity of some scattering angles leads to complete spin polarized electrons. This result is obtained with the help of the perturbation theory.
Teshome Senbeta, Vadim N. Mal’nev
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Photon-photon scattering from a UV-complete gravity QFT
Journal of High Energy Physics, 2022 Quantum quadratic gravity (QQG) produces a tree-level differential cross section for γγ → γγ that is well-behaved at all energies. From this we can study how the corrections to low energy scattering amplitudes are related to the UV physics, in particular
Bob Holdom
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Two-Dimensional Attenuation and Velocity Tomography of Iran
Geosciences, 2022 Seismic bulletin data collected by the Iranian Seismological Center are used to image crust and mantle seismic attenuation, group velocity, and phase velocities for Lg, Pg, Sn, and Pn phases.
Thomas M. Hearn
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On triple-cut of scattering amplitudes
Physics Letters B, 2007 It is analysed the triple-cut of one-loop amplitudes in dimensional regularisation within spinor-helicity representation. The triple-cut is defined as a difference of two double-cuts with the same particle content, and a same propagator carrying, respectively, causal and anti-causal prescription in each of the two cuts. That turns out into an effective
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IEEE AccessThe plasma sheath can absorb or reflect electromagnetic waves, thus affecting the communication of hypersonic vehicles. The study of attenuation and enhancement of electromagnetic scattering by plasma is of great significance.
Caixiong Han, Jiajie Wang, Lanfang Ding
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Scaled analog measurements of light scattering by aggregates with merging monomers
Atti della Accademia Peloritana dei Pericolanti : Classe di Scienze Fisiche, Matematiche e Naturali, 2011 This work reports on the experimental analysis of light scattering by aggregates with merging monomers. For such complex shape particles, scaled targets can be built using a rapid prototyping technique (stereo lithography).
J.-M. Geffrin +3 more
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Mathematical Aspects of Scattering Amplitudes [PDF]
Journeys Through the Precision Frontier: Amplitudes for Colliders, 2015 In these lectures we discuss some of the mathematical structures that appear when computing multi-loop Feynman integrals. We focus on a specific class of special functions, the so-called multiple polylogarithms, and discuss introduce their Hopf algebra structure.
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