Results 51 to 60 of about 32,796 (196)
The effect of longitudinal flow on resonantly damped kink oscillations
, 2009 The most promising mechanism acting towards damping the kink oscillations of coronal loops is resonant absorption. In this context most of previous studies neglected the effect of the obvious equilibrium flow along magnetic field lines.
Arregui +36 more
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Exotic leaky wave radiation from anisotropic epsilon near zero metamaterials
, 2011 We investigate the emission of electromagnetic waves from biaxial subwavelength metamaterials. For tunable anisotropic structures that exhibit a vanishing dielectric response along a given axis, we find remarkable variation in the launch angles of energy
Feng, Simin +2 more
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Amplitude and phase evolution of optical fields inside periodic photonic structures [PDF]
, 2003 Optical amplitude distributions of light inside periodic photonic structures are visualized with subwavelength resolution. In addition, using a phase-sensitive photon scanning tunneling microscope, we simultaneously map the phase evolution of light.
Flück, E. +5 more
core +4 more sources
The Astrophysical JournalThe response of a solar coronal plasma loop to an impulsive perturbation, demonstrating the simultaneous formation of guided and leaky fast magnetoacoustic wave trains, is numerically studied.
Mijie Shi +3 more
doaj +1 more source
Verification of the electromagnetic deep-penetration effect in the real world
Scientific Reports, 2021 The deep penetration of electromagnetic waves into lossy media can be obtained by properly generating inhomogeneous waves. In this work, for the very first time, we demonstrate the physical implementation and the practical relevance of this phenomenon. A
Paolo Baccarelli +6 more
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New Space Leaky Wave Spectrum Components on the Slotline [PDF]
, 2000 Surface and space leakage of power deteriorates the operation of circuits. On the other hand space leaky waves enable the design of specific radiators. In this paper we therefore investigate the potential of the slotline to radiate into space. We confirm
Macháč, Jan, Zehentner, Ján
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Improving directional radiation quality based on a gradient amplitude acoustic leaky wave antenna
New Journal of Physics, 2019 In this work, we show how to modify radiation amplitude with a leaky wave antenna to improve the quality of sound radiation. The designed gradient amplitude leaky wave antenna consists of a straight pipe with periodically loaded membranes, open channels ...
Jun Lan +4 more
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Bound States in the Continuum and Fano Resonances in the Dirac Cone Spectrum
, 2019 We consider light scattering by two dimensional arrays of high-index dielectric spheres arranged into the triangular lattice. It is demonstrated that in the case a triple degeneracy of resonant leaky modes in the Gamma-point the scattering spectra ...
Bulgakov, E. N., Maksimov, D. N.
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Nonradiating Photonics with Resonant Dielectric Nanostructures [PDF]
, 2019 Nonradiating sources of energy have traditionally been studied in quantum mechanics and astrophysics, while receiving a very little attention in the photonics community.
Bogdanov, Andrey +4 more
core +2 more sources
Sinusoidally-Modulated Graphene Leaky-Wave Antenna for Electronic Beamscanning at THz
, 2014 This paper proposes the concept, analysis and design of a sinusoidally-modulated graphene leaky-wave antenna with beam scanning capabilities at a fixed frequency.
Esquius-Morote, Marc +2 more
core +1 more source