نتایج جستجو برای: electromagnetic wave polarisation

تعداد نتایج: 287502  

2001
António L. Topa Carlos R. Paiva Afonso M. Barbosa

This paper treats electromagnetic wave propagation in anisotropic, chiral and pseudochiral 3D structures. The analysis is focused on radiation and leakage behavior and includes a discussion of the effect of the media parameters on the electromagnetic characteristics of these structures.

2017

Submit Manuscript | http://medcraveonline.com Abbreviations: EMFs: Electromagnetic Fields; MWR: Microwave Radiation; NIR: Non-Ionizing Radiation; RF-EMW: Radiofrequency Electromagnetic Waves; RF: Radiofrequency; EMW: Electromagnetic Wave; SNS: Sympathetic Nervous System; PNS: Parasympathetic Nervous System; PRA: Plasma Renin Activity; AMI: Acute Myocardial Infarction; SNAP: N-AcetylSnitrosoDl-P...

2002
M. Walt H. D. Voss J. Pickett

[1] On 15 October 1999, charged particle and plasma wave detectors on the Polar satellite observed an enhancement in precipitating energetic electrons coincident with an ELF/VLF electromagnetic emission. Assuming that the electromagnetic wave was field aligned and scattered trapped electrons by first-order cyclotron resonance near the equatorial plane, the resulting pitch angle distribution of ...

2008
Romi Mankin Tõnu Laas Risto Tammelo

We present an alternative method for constructing the exact and approximate solutions of electromagnetic wave equations whose source terms are arbitrary order multipoles on a curved spacetime. The developed method is based on the higher-order Green’s functions for wave equations which are defined as distributions that satisfy wave equations with the corresponding order covariant derivatives of ...

2017
Hanwei Wang Qiufang Yao Chao Wang Zhongqing Ma Qingfeng Sun Bitao Fan Chunde Jin Yipeng Chen

In this study, nanooctahedra MnFe₂O₄ were successfully deposited on a wood surface via a low hydrothermal treatment by hydrogen bonding interactions. As-prepared MnFe₂O₄/wood composite (MW) had superior performance of soft magnetism, fire resistance and electromagnetic wave absorption. Among them, small hysteresis loops and low coercivity (<±5 Oe) were observed in the magnetization-field curve ...

2014
Wei Tan Yong Sun Hong Chen Shun-Qing Shen

Condensed matter systems with topological order and metamaterials with left-handed chirality have attracted recently extensive interests in the fields of physics and optics. So far the topological order and chirality of electromagnetic wave are two independent concepts, and there is no work to address their connection. Here we propose to establish the relation between the topological order in c...

1987
Satoshi TAKEUCHI Kazuo SAKAI Michio MATSUMOTO Ryo SUGIHARA

It is shown that a charged particle can be trapped in a magnetic neutral sheet produced by the combination of a static magnetic field B 0 and an electromagnetic wave propagating perpendicularly to B0 with its magnetic field component parallel to B0. The neutral sheet as well as the trapped particle moves with the phase velocity ofthe wave and the trapped particle feels a constant force. Once th...

2005
Yu. P. Bliokh

It is shown that a smooth metal film (or a plasma layer) can be made transparent for an electromagnetic wave when two identical subwavelength diffraction gratings are placed on both sides of the film. The electromagnetic wave transmission through the metal film is caused by excitation of evanescent surface waves (plasmons) and their transformation into propagating waves at the gratings. A model...

1978
A. Gover

The field of radiation emission from electron beams is reviewed with special reference to work related to free-electron lasers. Different schemes o f interaction in periodic structures, electromagnetic slow-wave structures, and in transverse confining force are distinguished. Various effects and devices such as traveling wave amplifiers, Smith-Purcell radiators, Cerenkov and bremsstrahlung-free...

Journal: :Physical review. B, Condensed matter 1995
Mints Snapiro

We consider a one-dimensional Josephson junction in a superconducting film with the thickness that is much less than the London penetration depth. We treat an electromagnetic wave propagating along this tunnel contact. We show that the electrodynamics of a Josephson junction in a thin film is nonlocal if the wave length is less than the Pearl penetration depth. We find the integro-differential ...

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