Lightning-originated tangential electric field across air-soil interfaces

1994 ◽  
Vol 141 (1) ◽  
pp. 65-70
Author(s):  
V. Amoruso ◽  
F. Lattarulo
Keyword(s):  
Electric Field ◽  
Tangential Electric Field

On fluid motions induced by an electromagnetic field in a liquid drop immersed in a conducting fluid

1972 ◽  
Vol 51 (3) ◽  
pp. 585-591 ◽  
Author(s):  
C. Sozou
Keyword(s):  
Magnetic Field ◽  
Electromagnetic Field ◽  
Flow Field ◽  
Electric Field ◽  
Lorentz Force ◽  
Liquid Drop ◽  
Conducting Fluid ◽  
Uniform Electric Field ◽  
Tangential Electric Field ◽  
Set Up

The deformation of a liquid drop immersed in a conducting fluid by the imposition of a uniform electric field is investigated. The flow field set up is due to the surface charge and the tangential electric field stress over the surface of the drop, and the rotationality of the Lorentz force which is set up by the electric current and the associated magnetic field. It is shown that when the fluids are poor conductors and good dielectrics the effects of the Lorentz force are minimal and the flow field is due to the stresses of the electric field tangential to the surface of the drop, in agreement with other authors. When, however, the fluids are highly conducting and poor dielectrics the effects of the Lorentz force may be predominant, especially for larger drops.

Direct observation of a tangential electric field component at the magnetopause

1979 ◽  
Vol 6 (4) ◽  
pp. 305-308 ◽  
Author(s):  
F. S. Mozer ◽  
R. B. Torbert ◽  
U. V. Fahleson ◽  
C.-G. Fälthammar ◽  
A. Gonfalone ◽  
...  
Keyword(s):  
Electric Field ◽  
Direct Observation ◽  
Field Component ◽  
Electric Field Component ◽  
Tangential Electric Field

scholarly journals The Dielectric Wall Accelerator

2009 ◽  
Vol 02 (01) ◽  
pp. 253-263 ◽  
Author(s):  
George J. Caporaso ◽  
Yu-Jiuan Chen ◽  
Stephen E. Sampayan
Keyword(s):  
Electric Field ◽  
Traveling Wave ◽  
Tube Wall ◽  
Mass Ratio ◽  
Dielectric Wall ◽  
Beam Tube ◽  
Surface Flashover ◽  
Key Technologies ◽  
Tangential Electric Field ◽  
Accelerator Architectures

Dielectric wall accelerators, a class of induction accelerators, employ a novel insulating beam tube to impress a longitudinal electric field on a bunch of charged particles. The surface flashover characteristics of this tube may permit the attainment of accelerating gradients on the order of 100 MV/m for accelerating pulses on the order of a nanosecond in duration. A virtual traveling wave of excitation along the tube is produced at any desired speed by controlling the timing of pulse-generating modules that supply a tangential electric field to the tube wall. Because of the ability to control the speed of this virtual wave, the accelerator is capable of handling any charge-to-mass-ratio particle; hence it can be used for electrons, protons and any ion. The accelerator architectures, key technologies and development challenges will be described.

scholarly journals Multispectral Photonic Jet Shaping and Steering by Control of Tangential Electric Field Component on Cuboid Particle

Photonics ◽  
2021 ◽  
Vol 8 (8) ◽  
pp. 317
Author(s):  
Cheng-Yang Liu ◽  
Wei-Yu Chen ◽  
Oleg V. Minin ◽  
Igor V. Minin
Keyword(s):  
Electric Field ◽  
Lateral Surface ◽  
Focal Length ◽  
Low Cost ◽  
Decay Length ◽  
Metal Mask ◽  
Tangential Electric Field ◽  
Photonic Jet ◽  
Optical Integration ◽  
532 Nm

In this study, we present the simulations and experimental observations of photonic jet (PJ) shaping by control of tangential electric field components at illuminating wavelengths of 405 nm, 532 nm, and 671 nm. The PJs are generated by a single dielectric 4-micrometer cube that was fabricated from polydimethylsiloxane (PDMS). The dielectric cube is deposited on a silicon substrate and placed on two aluminum masks with a width equal to the side length of the cube. Due to the appearance of the metal masks, the focal length and decay length of the generated PJs decreased almost twice, while the PJ resolution increased 1.2 times. Thus, PJ shaping can be controlled by the presence of the metal mask along the lateral surface of the cube without changing the external shape or internal structure of the cube. This effect is based on the control of the tangential components of the electric field along the lateral surface of the cube. In the case of a one-sided metal mask, the effect of optical deflection and bending is predicted to form a photonic hook. Due to the low cost of these dielectric cubes, they have potential in far-field systems to better meet the requirements of modern optical integration circuits and switches.

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