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Optics Communications, 2000 The rate of electromagnetic energy flow per unit area, the Poynting vector, is defined and discussed in all books of electromagnetism. The vector and its associated linear momentum density is, however, invariably examined for plane waves or at least ...
L Allen, Miles J Padgett
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Study of Power Flow in an IPT System Based on Poynting Vector Analysis
Energies, 2018 This paper analyzes the power distribution and flow of an inductive power transfer (IPT) system with two coupled coils by using the Poynting vector. The system is modelled with a current source flowing through the primary coil, and a uniformly loaded ...
Aiguo Patrick Hu
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Poynting vector and beam divergence
Journal of the Optical Society of America A, 2020Laser beam divergence was considered using the components of the Poynting vector. A physical interpretation of the real and imaginary parts of the “longitudinal” field component (along the z axis, the direction of beam propagation) is given in an exponential representation.
Vladimir, Niziev, Peter, Muys
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Poynting vector analysis of a superlens
Optics Letters, 2005A power analysis of the lossy negative refractive index or left-handed slab lens is described. The presence of vortices in the image plane is revealed with small loss or gain, and these are attributed to the influence of field growth in the evanescent spectrum.
Ming-Chuan, Yang, Kevin J, Webb
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Experimental analysis of the Poynting vector characteristics
Applied Optics, 2012The possibility of experimental measurement of the Poynting vector characteristics is shown. Under paraxial approximation, these characteristics may be obtained on the basis of local Stokes polarimetry and interferometry of electric field components.
Igor, Mokhun +4 more
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The Poynting Vector in Magnetohydrodynamics
American Journal of Physics, 1965The propagation of electromagnetic energy arising from magnetohydrodynamic disturbances is described by a general Poynting vector, valid for perturbations of any magnitude. The Poynting vector associated with the solar wind is specified, and its magnitude is shown to be of the order of 6 μW/m2 at the orbit of earth.
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Pulse centroid velocity of the Poynting vector
Journal of the Optical Society of America A, 2004The evolution of the pulse centroid velocity of the Poynting vector for both ultrawideband rectangular and ultrashort Gaussian envelope pulses is presented as a function of the propagation distance in a dispersive, absorptive dielectric material. The index of refraction of the material is described by the Lorentz-Lorenz formula in which a single ...
Natalie A, Cartwright, Kurt E, Oughstun
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Force effect of poynting vector
, 2007 This paper brings theory for derivation of force effect of Poynting vector. The theory of electromagnetic field is the base of presented approach together with close link to quantum mechanics, theory of relativity and vacuum physics.
Büllow, Jiří
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An introduction to the Poynting vector
Physics Education, 1979Most students of physics first encounter the concept of electromagnetic energy flow associated with Poynting vector at a relatively advanced stage in their education, usually in the context of the flow of energy in electromagnetic waves. The present author draws attention to the possibility of introducing the Poynting vector concept at a much earlier ...
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The Poynting vector in a transformer
American Journal of Physics, 1984In any transformer the Poynting vector E×H points away from the primary winding into the field, and from the field into the secondary winding. The Poynting vector results from the superposition of the E=−∂A/∂t field associated with the changing magnetic flux and the H fields of the currents in the windings.
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