The polarization of a monochromatic optical beam lies in plane, and general, is described by an ellipse, known as the ellipse. ellipse tight focusing (non-paraxial) regime forms non-trivial three-dimensional topologies, such M\"obius ribbon strips, well knots. latter formed when dynamics specific states, e.g., circular are studied upon propagation. However, there alternative method to generate ...

Today's pulsed THz sources enable us to excite, probe, and coherently control the vibrational or rotational dynamics of organic and inorganic materials on ultrafast time scales. Driven by standard laser sources THz electric field strengths of up to several MVm(-1) have been reported and in order to reach even higher electric field strengths the use of dedicated electric field enhancement struct...

Generally speaking, seismoelectric modeling is a prospecting method based on seismic and electromagnetic waves, in which waves generated by a seismic source at the boundary of the two environments generate a relative fluid-solid motion formed as a result of antagonism between the elastic properties of the environment with the saturated fluid. This research has as its objective, a study of the e...

We consider vortex-type solutions in d = 5 dimensions of the Einstein gravity coupled to a nonabelian SU(2) field posessing a nonzero electric part. After the dimensional reduction, this corresponds to a d = 4 Einstein-Yang-Mills-Higgs-U(1)-dilaton model. A general axially symmetric ansatz is presented, and the properties of the spherically symmetric solutions are analysed.

[1] Using electric and magnetic field and field derivative sensors arrayed over an area of about 1 km, we measured the close fields of stepped leaders and first return strokes in 18 negative cloud-to-ground lightning flashes at distances to individual sensors ranging from about 100 m to about 1 km. We present examples of the close field waveforms along with their statistical characterization as...

Magnetic resonance electrical impedance tomography (MREIT) was recently proposed for determining electric field distribution during electroporation in which cell membrane permeability is temporary increased by application of an external high electric field. The method was already successfully applied for reconstruction of electric field distribution in agar phantoms. Before the next step toward...

First measurements of temperature fluctuations in a region of high velocity shear show that absolute and normalized fluctuation levels are reduced across the shear layer, a result that is consistent with weak parallel electron thermal conduction in the electron temperature dynamics. The concomitant reduction of temperature, density, and electric field fluctuations reduces the anomalous conducte...

A material would polarize, or carry a current under an external electric field, P = χeE (1) j = σE. If the electric field is not too strong, then the electric susceptibility and the conductivity are independent of the electric field. They only depend on the material properties in the absence of the electric field (in equilibrium). This type of response is called the linear response. The average...

Mathematical models of electrostatic actuation have been developed since the 1960’s, beginning with the work of G.I. Taylor, and are of great utility in a number of engineering systems. They are of particular use in the field of microand nanoelectromechanical systems, where models have typically dealt with planar geometries. Here, we extend the theory of electrostatic actuation to a non-planar ...