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Journal articles on the topic 'Propagation of electromagnetic fields'

Author: Grafiati

Published: 4 June 2021

Last updated: 8 February 2022

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1

Gradoni, Gabriele, Johannes Russer, Mohd Hafiz Baharuddin, et al. "Stochastic electromagnetic field propagation— measurement and modelling." Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 376, no. 2134 (2018): 20170455. http://dx.doi.org/10.1098/rsta.2017.0455.

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This paper reviews recent progress in the measurement and modelling of stochastic electromagnetic fields, focusing on propagation approaches based on Wigner functions and the method of moments technique. The respective propagation methods are exemplified by application to measurements of electromagnetic emissions from a stirred, cavity-backed aperture. We discuss early elements of statistical electromagnetics in Heaviside's papers, driven mainly by an analogy of electromagnetic wave propagation with heat transfer. These ideas include concepts of momentum and directionality in the realm of prop

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2

Bouchal, ZdeněK, Richard Horák, and Jaroslav Wagner. "Propagation-invariant electromagnetic fields: Theory and experiment." Journal of Modern Optics 43, no. 9 (1996): 1905–20. http://dx.doi.org/10.1080/09500349608232859.

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3

GRIMUS, W., and T. SCHARNAGL. "NEUTRINO PROPAGATION IN MATTER AND ELECTROMAGNETIC FIELDS." Modern Physics Letters A 08, no. 21 (1993): 1943–59. http://dx.doi.org/10.1142/s0217732393001665.

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The neutrino propagation equations employed for possible solutions of the solar neutrino problem are reviewed and their derivation with the help of a Foldy-Wouthuysen transformation is discussed. The difference in the treatment of Dirac and Majorana neutrinos is particularly emphasized.

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4

Karbstein, F. "Photon Propagation in Slowly Varying Electromagnetic Fields." Russian Physics Journal 59, no. 11 (2017): 1761–67. http://dx.doi.org/10.1007/s11182-017-0974-1.

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5

Chanyal, B. C. "A relativistic quantum theory of dyons wave propagation." Canadian Journal of Physics 95, no. 12 (2017): 1200–1207. http://dx.doi.org/10.1139/cjp-2017-0080.

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Beginning with the quaternionic generalization of the quantum wave equation, we construct a simple model of relativistic quantum electrodynamics for massive dyons. A new quaternionic form of unified relativistic wave equation consisting of vector and scalar functions is obtained, and also satisfy the quaternionic momentum eigenvalue equation. Keeping in mind the importance of quantum field theory, we investigate the relativistic quantum structure of electromagnetic wave propagation of dyons. The present quantum theory of electromagnetism leads to generalized Lorentz gauge conditions for the el

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6

Martínez-Herrero, Rosario, and Pedro M. Mejías. "Electromagnetic fields that remain totally polarized under propagation." Optics Communications 279, no. 1 (2007): 20–22. http://dx.doi.org/10.1016/j.optcom.2007.07.002.

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7

Asoubar, Daniel, Site Zhang, Frank Wyrowski, and Michael Kuhn. "Efficient semi-analytical propagation techniques for electromagnetic fields." Journal of the Optical Society of America A 31, no. 3 (2014): 591. http://dx.doi.org/10.1364/josaa.31.000591.

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8

Gilbert, Kenneth E., Xiao Di, Samir Khanna, Martin J. Otte, and John C. Wyngaard. "Electromagnetic wave propagation through simulated atmospheric refractivity fields." Radio Science 34, no. 6 (1999): 1413–35. http://dx.doi.org/10.1029/1999rs900078.

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9

Turunen, Jari, and Ari T. Friberg. "Self-imaging and propagation-invariance in electromagnetic fields." Pure and Applied Optics: Journal of the European Optical Society Part A 2, no. 1 (1993): 51–60. http://dx.doi.org/10.1088/0963-9659/2/1/006.

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10

Hillion, Pierre. "Fourier-Bessel Expansions of Electromagnetic Fields in Chiral Cylindrical Structures." Zeitschrift für Naturforschung A 63, no. 9 (2008): 557–63. http://dx.doi.org/10.1515/zna-2008-0905.

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To handle electromagnetic wave propagation in a semi-infinite, perfectly conducting, chiral cylinder with a circular base, on which an harmonic Bessel beam impinges, we present a theory relying on the Fourier-Bessel expansion of electromagnetic fields. The chiral medium is successively described by the Tellegen and Post constitutive relations. Conditions of wave propagation are discussed.

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11

Tamas, Razvan D. "Antennas and Propagation: A Sensor Approach." Sensors 21, no. 14 (2021): 4920. http://dx.doi.org/10.3390/s21144920.

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12

Levchenko, Larysa. "Modeling the spatial distribution of magnetic fields of low frequency multiple sources." Advanced Information Systems 5, no. 2 (2021): 34–37. http://dx.doi.org/10.20998/2522-9052.2021.2.05.

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The work is show that in conditions of dense the location of electrical equipment in the premises, buildings and on territories to ensure the regulatory levels of electromagnetic compatibility of personnel and the population, it is advisable to carry out preliminary modeling of the propagation of electromagnetic fields it is advisable. Considering the insignificant shielding of the magnetic field by the equipment cases, it is advisable to carry out modeling based on the magnetic component of the electromagnetic field. The mathematical ratio of the propagation of the magnetic field of individua

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13

Zhong, Huiying, Site Zhang, Rui Shi, Christian Hellmann, and Frank Wyrowski. "Fast propagation of electromagnetic fields through graded-index media." Journal of the Optical Society of America A 35, no. 4 (2018): 661. http://dx.doi.org/10.1364/josaa.35.000661.

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14

Ma, Ye Wan, Zhao Wang Wu, Quan Jin Liu, et al. "The Optical Properties of Nano-Materials and Electromagnetic Wave Propagation Visualized with MATLAB." Key Engineering Materials 773 (July 2018): 138–44. http://dx.doi.org/10.4028/www.scientific.net/kem.773.138.

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The course of electromagnetic fields and waves has properties of abstract concept, strong theory and complex calculation, thus this course is difficult to study and understand, and then is also difficult to teach. In order to make the understanding of the course easier, MATLAB software is used as a platform in classroom teaching of electromagnetic fields and waves. This paper mainly discusses the electrical field intensity distribution of media sphere materials and the properties of electromagnetic wave propagation with MATLAB software. The optical properties of dielectric-metal core-shell mul

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15

Lee, Jong S., and Elizabeth N. Its. "Propagation of Rayleigh Waves in Magneto-Elastic Media." Journal of Applied Mechanics 59, no. 4 (1992): 812–18. http://dx.doi.org/10.1115/1.2894047.

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Propagation of Rayleigh waves in a perfectly conducting elastic half-space in the presence of magnetic fields is considered for a possible application in nondestructive measurements of mechanical and/or electromagnetic parameters in electromagnetic materials. In particular, the dependence of Rayleigh wave velocity on magnetic and elastic parameters of the conducting medium in tangentially and normally oriented primary magnetic fields is investigated. Numerical results for three elastic materials with different elastic parameters are presented for a range of magnetic permeability. It is shown t

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16

SERVIN, MARTIN, and GERT BRODIN. "Propagation of electromagnetically generated wake fields in inhomogeneous magnetized plasmas." Journal of Plasma Physics 67, no. 5 (2002): 339–51. http://dx.doi.org/10.1017/s0022377802001708.

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Generation of wake fields by a short electromagnetic pulse in a plasma with an inhomogeneous background magnetic field and density profile is considered, and a wave equation is derived. Transmission and reflection coefficients are calculated in a medium with sharp discontinuities. Particular attention is focused on examples where the longitudinal part of the electromagnetic field is amplified for the transmitted wave. Furthermore, it is noted that the wake field can propagate out of the plasma and thereby provide information about the electron density profile. A method for reconstructing the b

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17

PIWNICKI, P. "GEOMETRICAL APPROACH TO LIGHT IN INHOMOGENEOUS MEDIA." International Journal of Modern Physics A 17, no. 11 (2002): 1543–58. http://dx.doi.org/10.1142/s0217751x02009746.

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Electromagnetism in an inhomogeneous dielectric medium at rest is described using the methods of differential geometry. In contrast to a general relativistic approach the electromagnetic fields are discussed in three-dimensional space only. The introduction of an appropriately chosen three-dimensional metric leads to a significant simplification of the description of light propagation in an inhomogeneous medium: light rays become geodesics of the metric and the field vectors are parallel transported along the rays. The new metric is connected to the usual flat space metric diag[1,1,1] via a co

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18

Janowicz, M. W., J. M. A. Ashbourn, Arkadiusz Orłowski, and Jan Mostowski. "Cellular automaton approach to electromagnetic wave propagation in dispersive media." Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences 462, no. 2074 (2006): 2927–48. http://dx.doi.org/10.1098/rspa.2006.1701.

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Extensions of Białynicki-Birula's cellular automaton are proposed for studies of the one-dimensional propagation of electromagnetic fields in Drude metals, as well as in both transparent, dispersive and lossy dielectrics. These extensions are obtained by representing the dielectrics with appropriate matter fields, such as polarization together with associated velocity fields. To obtain the different schemes for the integration of the resulting systems of linear partial differential equations, split-operator ideas are employed. Possible further extensions to two-dimensional propagation and for

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19

Nakazawa, Shinji, and Yukiharu Ohsawa. "Electromagnetic Fields in Nonlinear Magnetosonic Waves with Relativistic Propagation Speeds." Journal of the Physical Society of Japan 66, no. 7 (1997): 2044–50. http://dx.doi.org/10.1143/jpsj.66.2044.

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20

Nakazawa, Shinji, and Yukiharu Ohsawa. "Electromagnetic Fields in Nonlinear Magnetosonic Waves with Relativistic Propagation Speeds." Journal of the Physical Society of Japan 67, no. 8 (1998): 2965. http://dx.doi.org/10.1143/jpsj.67.2965.

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21

Chave, Alan D., Agústa H. Flosadóttir, and Charles S. Cox. "Some comments on seabed propagation of ULF/ELF electromagnetic fields." Radio Science 25, no. 5 (1990): 825–36. http://dx.doi.org/10.1029/rs025i005p00825.

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22

Vieira, Marcos S., and Jorge M. Janiszewski. "Propagation of lightning electromagnetic fields in the presence of buildings." Electric Power Systems Research 118 (January 2015): 101–9. http://dx.doi.org/10.1016/j.epsr.2014.07.025.

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23

Cooray, Vernon, Gerald Cooray, Marcos Rubinstein, and Farhad Rachidi. "Generalized Electric Field Equations of a Time-Varying Current Distribution Based on the Electromagnetic Fields of Moving and Accelerating Charges." Atmosphere 10, no. 7 (2019): 367. http://dx.doi.org/10.3390/atmos10070367.

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In several studies conducted recently, it was shown that equations pertinent to the electric and magnetic fields produced by electrical charges in motion can be used to calculate the electromagnetic fields produced by current pulses propagating along linearly restricted paths. An example includes the case of current pulses propagating along conductors and conducting channels such as lightning. In this paper, it is shown how the technique can be applied to estimate the electromagnetic fields generated by current and charge distributions moving in arbitrary directions in space. The analysis show

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24

Khodakovskyi, Oleksii, Larysa Levchenko, Vadym Kolumbet, Anna Kozachuk, and Dmytro Kuzhavskyi. "Calculation apparatus for modeling the distribution of electromagnetic fields of different sources." Advanced Information Systems 5, no. 1 (2021): 34–38. http://dx.doi.org/10.20998/2522-9052.2021.1.04.

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The calculation apparatus acceptable for assumptions and simplifications and sufficient for errors of final results for modeling the propagation of electric, magnetic and electromagnetic fields spread over a certain area was proposed. It is shown that to model the propagation of ultra-low frequency electric and magnetic fields (monitors, uninterruptible power supplies, transformers, electric motors and generators) it is possible to consider these sources as dipole and dipole-quadrupole type sources. That is, the field of the local source can be considered as a combination of electric and magne

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25

Martínez-Niconoff, Gabriel, P. Martinez-Vara, G. Diaz-Gonzalez, J. Silva-Barranco, and A. Carbajal-Domínguez. "Surface Plasmon Singularities." International Journal of Optics 2012 (2012): 1–7. http://dx.doi.org/10.1155/2012/152937.

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With the purpose to compare the physical features of the electromagnetic field, we describe the synthesis of optical singularities propagating in the free space and on a metal surface. In both cases the electromagnetic field has a slit-shaped curve as a boundary condition, and the singularities correspond to a shock wave that is a consequence of the curvature of the slit curve. As prototypes, we generate singularities that correspond to fold and cusped regions. We show that singularities in free space may generate bifurcation effects while plasmon fields do not generate these kinds of effects.

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26

Pääkkönen, Pertti, Jani Tervo, Pasi Vahimaa, Jari Turunen, and Franco Gori. "General vectorial decomposition of electromagnetic fields with application to propagation-invariant and rotating fields." Optics Express 10, no. 18 (2002): 949. http://dx.doi.org/10.1364/oe.10.000949.

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27

Ma, Quan Wen, Zhong Yin Xiao, Xiao Xue Xu, Xiao Long Ma, De Jun Liu, and Zi Hua Wang. "Dispersion Curves and Fields for a Chiral Negative Refraction Parallel-Plate Waveguide under PMC Boundary." Applied Mechanics and Materials 571-572 (June 2014): 920–24. http://dx.doi.org/10.4028/www.scientific.net/amm.571-572.920.

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The characteristics of a chiral negative refraction parallel-plate waveguide under PMC boundary are studied theoretically, and the corresponding dispersion relations, cut-off frequencies, propagating guided modes are obtained. Some novel features are found, such as fundamental mode will be not exist only if the chirality parameter κ>1, in addition, the cutoff frequency is no longer the conventionally defined frequency when propagation constant is zero, but the least frequency that guided mode can still propagate. According to the relations between propagation constant β and wavenumbers k+,k

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28

Cooray, Vernon, and and Gerald Cooray. "A Novel Interpretation of the Electromagnetic Fields of Lightning Return Strokes." Atmosphere 10, no. 1 (2019): 22. http://dx.doi.org/10.3390/atmos10010022.

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Electric and/or magnetic fields are generated by stationary charges, uniformly moving charges and accelerating charges. These field components are described in the literature as static fields, velocity fields (or generalized Coulomb field) and radiation fields (or acceleration fields), respectively. In the literature, the electromagnetic fields generated by lightning return strokes are presented using the field components associated with short dipoles, and in this description the one–to-one association of the electromagnetic field terms with the physical process that gives rise to them is lost

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29

Semenikhin, Andrei I., Diana V. Semenikhina, and Yuri V. Yukhanov. "E-Learning in the Courses on “Electromagnetics”, “Radio Wave Propagation” and “Electromagnetic Fields and Waves”." Journal of Physics: Conference Series 1624 (October 2020): 022040. http://dx.doi.org/10.1088/1742-6596/1624/2/022040.

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30

Juhl, B., and R. A. Treumann. "VLF emission stimulated by parallel electric fields." Journal of Plasma Physics 34, no. 1 (1985): 47–66. http://dx.doi.org/10.1017/s0022377800002671.

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We study the influence of a weak quasi-static parallel electric field on the stability of electromagnetic plasma waves. Using an operator calculus to solve the Boltzmann-Maxwell equations we derive a dispersion relation for the electromagnetic waves. Assuming that the electrons have a loss-cone distribution, the real frequency of waves in the whistler band is not changed by the presence of the electric field. Resonant interaction damps the HF waves for propagation parallel to the electric field. In the case of opposite propagation, a new HF excitation is found at frequencies ω ≲ ωce The width

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31

Xiong, Zonghou. "Electromagnetic fields of electric dipoles embedded in a stratified anisotropic earth." GEOPHYSICS 54, no. 12 (1989): 1643–46. http://dx.doi.org/10.1190/1.1442633.

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The anisotropy of electrical conductivity in earth formations may be caused by crystal anisotropies of minerals, as well as by minilayers which occur frequently in sedimentary environments. The effects of anisotropy on the propagation of electromagnetic (EM) fields have been studied by many geophysicists. For instance, Kong (1972) and Wait (1981) solved the EM propagation problem for vertically anisotropic layered earths; O’Brien and Morrison (1967), for a horizontally anisotropic multilayer half‐space; Chetayev (1960), as well as Reddy and Rankin (1971), for media of dipping anisotropies; and

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32

Cooray, Vernon, M. Fernando, T. Sörensen, Thomas Götschl, and Aa Pedersen. "Propagation of lightning generated transient electromagnetic fields over finitely conducting ground." Journal of Atmospheric and Solar-Terrestrial Physics 62, no. 7 (2000): 583–600. http://dx.doi.org/10.1016/s1364-6826(00)00008-0.

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33

Castañeda, Román, Jaime Moreno, and Daniel Colorado. "Spatially correlated polarization and non-paraxial propagation of electromagnetic wave fields." Optics Communications 481 (February 2021): 126554. http://dx.doi.org/10.1016/j.optcom.2020.126554.

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34

TERVO, JANI, PASI VAHIMAA, and JARI TURUNEN. "On propagation-invariant and self-imaging intensity distributions of electromagnetic fields." Journal of Modern Optics 49, no. 9 (2002): 1537–43. http://dx.doi.org/10.1080/09500340110107504.

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35

Zhang, Site, Christian Hellmann, and Frank Wyrowski. "Algorithm for the propagation of electromagnetic fields through etalons and crystals." Applied Optics 56, no. 15 (2017): 4566. http://dx.doi.org/10.1364/ao.56.004566.

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36

Kholmetskii, A. L., O. V. Missevitch, and R. Smirnov-Rueda. "Measurement of propagation velocity of bound electromagnetic fields in near zone." Journal of Applied Physics 102, no. 1 (2007): 013529. http://dx.doi.org/10.1063/1.2749415.

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37

Hou, Wenhao, Mohammad Azadifar, Marcos Rubinstein, Farhad Rachidi, and Qilin Zhang. "On the Propagation of Lightning-Radiated Electromagnetic Fields Across a Mountain." IEEE Transactions on Electromagnetic Compatibility 62, no. 5 (2020): 2137–47. http://dx.doi.org/10.1109/temc.2019.2947095.

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38

Løseth, Lars O., Hans M. Pedersen, Bjørn Ursin, Lasse Amundsen, and Svein Ellingsrud. "Low-frequency electromagnetic fields in applied geophysics: Waves or diffusion?" GEOPHYSICS 71, no. 4 (2006): W29—W40. http://dx.doi.org/10.1190/1.2208275.

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Low-frequency electromagnetic (EM) signal propagation in geophysical applications is sometimes referred to as diffusion and sometimes as waves. In the following we discuss the mathematical and physical approaches behind the use of the different terms. The basic theory of EM wave propagation is reviewed. From a frequency-domain description we show that all of the well-known mathematical tools of wave theory, including an asymptotic ray-series description, can be applied for both nondispersive waves in nonconductive materials and low-frequency waves in conductive materials. We consider the EM fi

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39

Bia, Pietro, Luciano Mescia, and Diego Caratelli. "Fractional Calculus-Based Modeling of Electromagnetic Field Propagation in Arbitrary Biological Tissue." Mathematical Problems in Engineering 2016 (2016): 1–11. http://dx.doi.org/10.1155/2016/5676903.

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The interaction of electromagnetic fields and biological tissues has become a topic of increasing interest for new research activities in bioelectrics, a new interdisciplinary field combining knowledge of electromagnetic theory, modeling, and simulations, physics, material science, cell biology, and medicine. In particular, the feasibility of pulsed electromagnetic fields in RF and mm-wave frequency range has been investigated with the objective to discover new noninvasive techniques in healthcare. The aim of this contribution is to illustrate a novel Finite-Difference Time-Domain (FDTD) schem

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40

Belubekyan, M. V., and A. A. Papyan. "SEMI-INFINITE WAVEGUIDE MADE OF PIEZOELASTIC MATERIAL OF CLASS 6MM." SYNCHROINFO JOURNAL 6, no. 2 (2020): 16–19. http://dx.doi.org/10.36724/2664-066x-2020-6-2-16-19.

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The problems of coupled physical fields, such as the interaction of mechanical and electromagnetic fields, piezoelectric effect, electrostriction and others, are the most urgent. The study of the issues of wave propagation in piezoelectric materials is also relevant. In this paper the propagation of a monochromatic electroelastic signal in a semi-infinite piezoelectric layer is considered. Let's consider different cases of the boundary conditions, from which localized vibrations can be obtained in the vicinity of the free edge.

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41

Vegt, Wim. "Stability and Interaction Processes within Separate Magnetic and Electric Fields and Equilibrium within Electromagnetic Confinements." European Journal of Engineering Research and Science 4, no. 10 (2019): 24–41. http://dx.doi.org/10.24018/ejers.2019.4.10.1568.

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The inner structure of a photon is based on a 3-dimensional anisotropic equilibrium within the electromagnetic pulses in which an equilibrium does exist for the Electric and the Magnetic Fields separately generated by the pulses. A photon cannot be considered as a particle. Because particles are 3-dimensional confinements. Photons are anisotropic (in 1st and 2nd dimension a particle and in the 3rd dimension a wave) confinements of electromagnetic pulses, generated during the energy transitions within the atoms. Photons are 2-dimensional confinements of electromagnetic energy and demonstrate th

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42

Martínez-Herrero, Rosario, and Pedro M. Mejías. "On the propagation of random electromagnetic fields with position-independent stochastic behavior." Optics Communications 283, no. 22 (2010): 4467–69. http://dx.doi.org/10.1016/j.optcom.2010.04.084.

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43

Lu, Jie, Yuguo Li, and Zhijun Du. "Fictitious wave domain modelling and analysis of marine CSEM data." Geophysical Journal International 219, no. 1 (2019): 223–38. http://dx.doi.org/10.1093/gji/ggz288.

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SUMMARY Modelling marine controlled-source electromagnetic (CSEM) responses in the fictitious time domain is a novel approach, which facilitates the full exploration of EM diffusive properties in the fictitious wave domain (FWD). Concepts, such as reflections, refractions, diffractions and transmissions, which are used for the analysis of elastic wave propagation can thus be adopted in FWD for interpreting CSEM data. In this paper, we use a high-order finite difference time domain (FDTD) algorithm for modelling marine CSEM responses in both the fictitious time domain and the diffusive frequenc

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44

Dabagov. "Advanced Channeling Technologies: Strong External Electromagnetic Fields to Guide Charged & Neutral Beams." Proceedings 26, no. 1 (2019): 40. http://dx.doi.org/10.3390/proceedings2019026040.

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45

Dobado, Antonio, and Antonio L. Maroto. "Primordial Torsion Fields as an Explanation of the Anisotropy in Cosmological Electromagnetic Propagation." Modern Physics Letters A 12, no. 38 (1997): 3003–7. http://dx.doi.org/10.1142/s0217732397003125.

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In this letter we provide a simple explanation of the recent finding of anisotropy in electromagnetic (EM) propagation claimed by Nodland and Ralston. We consider, as a possible origin of such effect, the effective coupling between EM fields and some tiny background torsion field. The coupling is obtained after integrating out charged fermions, it is gauge-invariant and does not require the introduction of any new physics.

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46

GIRKA, V., I. GIRKA, I. PAVLENKO, O. GIRKA, and A. GIRKA. "Coupled azimuthal modes propagating in current-carrying plasma waveguides." Journal of Plasma Physics 78, no. 2 (2011): 105–23. http://dx.doi.org/10.1017/s0022377811000468.

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AbstractThe paper is devoted to the theory of electromagnetic surface waves propagating along the azimuthal direction in cylindrical metal waveguides, which are filled with current-carrying plasmas. The problem is solved by the method of successive approximation. Adequacy of this method application is proved here. To study the coupling of ordinary (O-) and extraordinary (X-) azimuthal modes, the linear theory of the eigenazimuthal X- and O-modes is applied as zero approximation. Plasma particles are described in the framework of magneto-hydrodynamics, electromagnetic fields of the coupled azim

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47

BAL, GUILLAUME, and OLIVIER PINAUD. "IMAGING USING TRANSPORT MODELS FOR WAVE–WAVE CORRELATIONS." Mathematical Models and Methods in Applied Sciences 21, no. 05 (2011): 1071–93. http://dx.doi.org/10.1142/s0218202511005258.

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We consider the imaging of objects buried in unknown heterogeneous media. The medium is probed by using classical (e.g. acoustic or electromagnetic) waves. When heterogeneities in the medium become too strong, inversion methodologies based on a microscopic description of wave propagation (e.g. a wave equation or Maxwell's equations) become strongly dependent on the unknown details of the heterogeneous medium. In some situations, it is preferable to use a macroscopic model for a quantity that is quadratic in the wave fields. Here, such macroscopic models take the form of radiative transfer equa

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48

Karlický, M., and M. Bárta. "Return-current formation in the electron beam – plasma system." Nonlinear Processes in Geophysics 16, no. 4 (2009): 525–32. http://dx.doi.org/10.5194/npg-16-525-2009.

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Abstract. Using a 3-D electromagnetic particle-in-cell model an evolution of the electron distribution function in the beam-plasma system with the return current is computed. It was found that the resulting electron distribution function depends on the magnetic field assumed along the beam-propagation direction. While for small magnetic fields the electron distribution function becomes broad in the direction perpendicular to the beam propagation due to the Weibel (filamentation) instability and the return current is formed by a shifted bulk distribution, for stronger magnetic fields the distri

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49

Zimmerling, Jörn, Vladimir Druskin, Mikhail Zaslavsky, and Rob F. Remis. "Model-order reduction of electromagnetic fields in open domains." GEOPHYSICS 83, no. 2 (2018): WB61—WB70. http://dx.doi.org/10.1190/geo2017-0507.1.

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We have developed several Krylov projection-based model-order reduction techniques to simulate electromagnetic wave propagation and diffusion in unbounded domains. Such techniques can be used to efficiently approximate transfer function field responses between a given set of sources and receivers and allow for fast and memory-efficient computation of Jacobians, thereby lowering the computational burden associated with inverse scattering problems. We found how general wavefield principles such as reciprocity, passivity, and the Schwarz reflection principle translate from the analytical to the n

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50

Bisai, N., A. Sen, and K. K. Jain. "Nonlinear coupling of a superluminal electromagnetic wave to a relativistic electron beam." Journal of Plasma Physics 56, no. 2 (1996): 209–20. http://dx.doi.org/10.1017/s0022377800019218.

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Abstract:

The nonlinear propagation of a superluminal, linearly polarized electromagnetic wave in the presence of a relativistic cold electron beam is investigated. At large amplitudes the wave couples to the electron-beam plasma mode owing to two important nonlinear effects, namely the relativistic variation of the electron mass and the excitation of longitudinal space charge fields by strong v × B forces. The nonlinear propagation equations for the coupled electromagnetic and longitudinal waves are derived within the context of a relativistic cold-fluid model. Nonlinear travelling-wave solutions are s

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