نتایج جستجو برای: electromagnetic wave polarisation

تعداد نتایج: 287502  

2003
JULIEN SYLVESTRE

Various models for electromagnetic emissions correlated with the gravitational wave signals expected to be detectable by the current and planned gravitational wave detectors are studied. The position error on the location of a gravitational wave source is estimated, and is used to show that it could be possible to observe the electromagnetic counterparts to neutron star-neutron star or neutron ...

1994
J. Samuel R. Nityananda

We draw attention to an elementary flaw in a recently proposed experiment to measure the wave function of a single quantum system. In a recent paper, Aharonov, Anandan and Vaidman [1] claim to have devised an experiment to measure the wave function [2] of a single quantum mechanical system. The experiment they propose is a 'protective measure-ment': while the measurement is being performed, the...

2001
T K Ng C M Varma

We formulate a general theory of the dielectric response of a lattice with a structural transition and a polarisation instability due to a soft-optic mode coupled to low energy electronic excitations by the electromagnetic fields. The electronic excitations considered are in two-limits; those of a low density of free-electrons or those of a low density of strongly localised electrons in the Cou...

2012
J. Abadie B. P. Abbott

Aims. The detection and measurement of gravitational-waves from coalescing neutron-star binary systems is an important science goal for ground-based gravitational-wave detectors. In addition to emitting gravitational-waves at frequencies that span the most sensitive bands of the LIGO and Virgo detectors, these sources are also amongst the most likely to produce an electromagnetic counterpart to...

Journal: :Signal Processing 2017
Angelo Sajeva Giovanni M. Menanno

We propose a method that identifies a mode of Rayleigh waves and separates it from body waves and from other modes, using quaternions to represent multicomponent data. Being well known the abilities of quaternions to handle rotations in space, we use previous results derived from Le Bihan and Mars [1] to prove that a Rayleigh-wave mode recorded by an array of vector-sensors can be approximated ...

Journal: :Journal of the Optical Society of America. A, Optics, image science, and vision 2011
Timor Melamed

The present contribution is concerned with applying beam-type expansion to planar aperture time-harmonic electromagnetic field distribution in which the propagating elements, the electromagnetic beam-type wave objects, are decomposed into transverse electric (TE) and transverse magnetic (TM) field constituents. This procedure is essential for applying Maxwell's boundary conditions for solving d...

2008
LUIS VEGA

We show a family of virial-type identities for the Schrödinger and wave equations with electromagnetic potentials. As a consequence, some weak dispersive inequalities in space dimension n ≥ 3, involving Morawetz and smoothing estimates, are proved; finally, we apply them to prove Strichartz inequalities for the wave equation with a non-trapping electromagnetic potential with almost Coulomb decay.

Journal: :Physical review. E, Statistical, nonlinear, and soft matter physics 2001
R M Vetter A Haibel G Nimtz

If a quantum mechanical particle is scattered by a potential well, the wave function of the particle can propagate with negative phase time. Because of the analogy of the Schrödinger and Helmholtz equations this phenomenon is expected to be observable for electromagnetic wave propagation. Experimental data for electromagnetic wells realized by waveguides filled with different dielectrics now co...

Journal: :journal of optoelectronical nano structures 0
masoud rezvani 1department of physics, malayer university, malayer, iran. maryam fathi sepahvand 1department of physics, malayer university, malayer, iran.

in this paper, scattering of a plane and monochromatic electromagnetic wave from a nano-wire is simulated using surface integral equations. first, integral equationsgoverning unknown fields on the surface is obtained based on stratton-cho surface integral equations. then, the interaction of the wave with a non-plasmonic as well as a palsmonic nano-wire is considered. it is shown that in scatter...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه بوعلی سینا - دانشکده علوم پایه 1386

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