Impulsively Excited Quasiperiodic Fast-propagating Waves in the Solar Corona
The Astrophysical JournalQuasiperiodic fast-propagating (QFP) waves excited by an impulsive, spatially localized velocity perturbation in a curved coronal loop are investigated with three-dimensional numerical simulations.
Mijie Shi +3 more
doaj +1 more source
Bound states within the radiation continuum in diffraction gratings and the role of leaky modes
New Journal of Physics, 2017 We discuss resonant states with diverging Q factor within the radiation continuum based on the anomalous interaction of leaky guided modes and diffracted waves in suitably designed reflection gratings.
Francesco Monticone, Andrea Alù
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Observation of multiple sausage oscillations in cool postflare loop
, 2008 Using simultaneous high spatial (1.3 arc sec) and temporal (5 and 10 s) resolution H-alpha observations from the 15 cm Solar Tower Telescope at ARIES, we study the oscillations in the relative intensity to explore the possibility of sausage oscillations ...
A. K. Srivastava +31 more
core +1 more source
Oscillatory Modes of a Prominence-PCTR-Corona Slab Model
, 2007 Oscillations of magnetic structures in the solar corona have often been interpreted in terms of magnetohydrodynamic waves. We study the adiabatic magnetoacoustic modes of a prominence plasma slab with a uniform longitudinal magnetic field, surrounded by ...
A.J. Díaz +21 more
core +1 more source
PERSISTENT HIGH WATER LEVELS AROUND ANDAMAN & NICOBAR ISLANDS FOLLOWING THE 26 DECEMBER 2004 TSUNAMI [PDF]
Science of Tsunami Hazards, 2006 During the tsunami of 26th December 2004 in the Indian Ocean, media reports suggested that high water levels persisted around the Andaman & Nicobar Islands for several days. These persistent high water levels can be explained by invoking the existence of
A.D. Rao +3 more
doaj
One-dimensional leaky-wave antenna producing multiple beams
AIP Advances, 2017 In this paper, far-field pattern of one-dimensional leaky-wave antenna (LWA) is directly synthesized by sinusoidally modulating surface currents of the antenna.
Xiang Wan, Tian Yi Chen, Tie Jun Cui
doaj +1 more source
, 1998 We predict an extreme sensitivity to the dissipative losses of the resonant interaction of bulk phonons with a 2D defect in a solid. We show that the total resonant reflection of the transverse phonon at the 2D defect, described earlier without an ...
Andreev +35 more
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Acoustic confinement and Stimulated Brillouin Scattering in integrated optical waveguides
, 2013 We examine the effect of acoustic mode confinement on Stimulated Brillouin Scattering in optical waveguides that consist of a guiding core embedded in a solid substrate.
Eggleton, Benjamin J. +2 more
core +1 more source
Dc to ac field conversion due to leaky-wave excitation in a plasma slab behind an ionization front
New Journal of Physics, 2015 We present a way for generating coherent tunable electromagnetic radiation through dc to ac field conversion by an ionization front. The conversion is caused by the excitation of leaky waves behind the transversely limited ionization front propagating in
V A Kostin, N V Vvedenskii
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Acoustic transmission enhancement through a periodically-structured stiff plate without any opening
, 2011 We report both experimentally and theoretically that the enhanced acoustic transmission can occur in the subwavelength region through a thin but stiff structured-plate without any opening.
Chunyin Qiu +9 more
core +2 more sources