scholarly journals The use of the Poynting vector in interpreting ULF waves in magnetospheric waveguides

2015 ◽  
Vol 120 (1) ◽  
pp. 166-186 ◽  
Author(s):  
T. Elsden ◽  
A. N. Wright
Keyword(s):  
Poynting Vector ◽  
Ulf Waves

PLASMON IMAGING USING THE UMOV - POYNTING VECTOR

2016 ◽  
Vol 75 (15) ◽  
pp. 1355-1367
Author(s):  
E.A. Velichko ◽  
A.P. Nickolaenko
Keyword(s):  
Poynting Vector

Reflector antenna analysis method using Poynting vector tracing between virtual apertures

2015 ◽  
Vol 9 (12) ◽  
pp. 1279-1286 ◽  
Author(s):  
Ming Bai ◽  
Naiming Ou ◽  
Ming Jin ◽  
Jungang Miao
Keyword(s):  
Poynting Vector ◽  
Reflector Antenna ◽  
Analysis Method

scholarly journals Formation of Inverse Energy Flux in the Case of Diffraction of Linearly Polarized Radiation by Conventional and Generalized Spiral Phase Plates

Photonics ◽  
2021 ◽  
Vol 8 (7) ◽  
pp. 283
Author(s):  
Andrey Ustinov ◽  
Svetlana Khonina ◽  
Alexey Porfirev
Keyword(s):  
Energy Flux ◽  
Poynting Vector ◽  
Numerical Study ◽  
Longitudinal Component ◽  
Light Fields ◽  
Linearly Polarized ◽  
Linearly Polarized Radiation ◽  
Phase Plates ◽  
Spiral Phase ◽  
Polarized Radiation

Recently, there has been increased interest in the shaping of light fields with an inverse energy flux to guide optically trapped nano- and microparticles towards a radiation source. To generate inverse energy flux, non-uniformly polarized laser beams, especially higher-order cylindrical vector beams, are widely used. Here, we demonstrate the use of conventional and so-called generalized spiral phase plates for the formation of light fields with an inverse energy flux when they are illuminated with linearly polarized radiation. We present an analytical and numerical study of the longitudinal and transverse components of the Poynting vector. The conditions for maximizing the negative value of the real part of the longitudinal component of the Poynting vector are obtained.

scholarly journals Long-Lasting Poloidal ULF Waves Observed by Multiple Satellites and High-Latitude SuperDARN Radars

2018 ◽  
Vol 123 (10) ◽  
pp. 8422-8438 ◽  
Author(s):  
X. Shi ◽  
J. B. H. Baker ◽  
J. M. Ruohoniemi ◽  
M. D. Hartinger ◽  
K. R. Murphy ◽  
...  
Keyword(s):  
High Latitude ◽  
Ulf Waves

scholarly journals High resolution observations of spectral width features associatedwith ULF wave signatures in artificial HF radar backscatter

2004 ◽  
Vol 22 (1) ◽  
pp. 169-182 ◽  
Author(s):  
D. M. Wright ◽  
T. K. Yeoman ◽  
L. J. Baddeley ◽  
J. A. Davies ◽  
R. S. Dhillon ◽  
...  
Keyword(s):  
High Resolution ◽  
Plasma Source ◽  
Spectral Width ◽  
Hf Radar ◽  
Mhd Waves ◽  
Small Scale ◽  
Ulf Waves ◽  
Source Population ◽  
Radar Backscatter ◽  
Field Lines

Abstract. The EISCAT high power heating facility at Tromsø, northern Norway, has been utilised to generate artificial radar backscatter in the fields of view of the CUTLASS HF radars. It has been demonstrated that this technique offers a means of making very accurate and high resolution observations of naturally occurring ULF waves. During such experiments, the usually narrow radar spectral widths associated with artificial irregularities increase at times when small scale-sized (high m-number) ULF waves are observed. Possible mechanisms by which these particle-driven high-m waves may modify the observed spectral widths have been investigated. The results are found to be consistent with Pc1 (ion-cyclotron) wave activity, causing aliasing of the radar spectra, in agreement with previous modelling work. The observations also support recent suggestions that Pc1 waves may be modulated by the action of longer period ULF standing waves, which are simultaneously detected on the magnetospheric field lines. Drifting ring current protons with energies of ∼ 10keV are indicated as a common plasma source population for both wave types. Key words. Magnetospheric physics (MHD waves and instabilities) – Space plasma physics (wave-particle interactions) – Ionosphere (active experiments)

Physical Significance of the Poynting Vector in Static Fields

1967 ◽  
Vol 35 (2) ◽  
pp. 153-156 ◽  
Author(s):  
Emerson M. Pugh ◽  
George E. Pugh
Keyword(s):  
Poynting Vector ◽  
Physical Significance

Multisatellite studies of ULF waves

1988 ◽  
Vol 8 (9-10) ◽  
pp. 427-436 ◽  
Author(s):  
Kazue Takahashi
Keyword(s):  
Ulf Waves

scholarly journals Multi-point Conjugate Observations of Dayside ULF Waves during an Extended Period of Radial IMF

2020 ◽  
Author(s):  
Xueling Shi ◽  
Michael D. Hartinger ◽  
J. B. H. Baker ◽  
John Michael Ruohoniemi ◽  
Dong Lin ◽  
...  
Keyword(s):  
Extended Period ◽  
Ulf Waves ◽  
Point Conjugate
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