Results 241 to 250 of about 604,180 (295)
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Multiple scattering of seismic waves
Ultrasonics, 2002We present theory and numerical simulations to model seismic wave propagation in the Earth crust. We compare them to observations made in Mexico.
N, Trégourès +6 more
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Continuous-wave stimulated Raman scattering
Optics Letters, 1991We report what is to our knowledge the first observation of continuous-wave stimulated Raman scattering (SRS). Both forward and enhanced backward SRS were observed in liquids, and the large spectral frequency shift between pump and probe makes signal detection easy.
C H, Bryant, M, Golombok
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Offshore Technology Conference, 1985
ABSTRACT The least-squares approach is commonly used for spiking and predictive deconvolution. An alternative approach is wave scattering deconvolution (WSD) proposed by Sarwar which uses the full wave solution of the acoustic wave equation.
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ABSTRACT The least-squares approach is commonly used for spiking and predictive deconvolution. An alternative approach is wave scattering deconvolution (WSD) proposed by Sarwar which uses the full wave solution of the acoustic wave equation.
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Guided acoustic-wave Brillouin scattering
Physical Review B, 1985Forward light scattering by the thermally excited guided acoustic modes of an optical fiber produce numerous narrow lines not predicted by the usual theory of Brillouin scattering. Optical heterodyne detection has been used to resolve the scattering spectrum which begins at about 20 MHz and extends to the detection limit. A simple theory quantitatively
, Shelby, , Levenson, , Bayer
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Scattering Of Surface Waves At Anisotropic Wave Barriers
10th EEGS Symposium on the Application of Geophysics to Engineering and Environmental Problems, 1997In this paper we consider the screening effectiveness of an infilled trench for isolation from near-surface ground-transmitted vibrations. The infilled trench is modeled by a vertical anisotropic layer embedded into an isotropic half-space. To study surface wave scattering at the layer we employ the Green’s function technique.
Elizabeth Its, Jong Lee
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Electromagnetic Wave Dynamics in Matter-Wave Superradiant Scattering
Physical Review Letters, 2010We present a small-signal wave propagation theory on matter-wave superradiant scattering. We show, in a longitudinally excited condensate, that the backward-propagating, superradiantly generated optical field propagates with ultraslow group velocity and that the small-signal gain profile has a Bragg resonance.
L, Deng, M G, Payne, E W, Hagley
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1986
In recent years there has been a significant amount of work on developing thermal wave systems to nondestructively detect and image features in materials [1-4]. The ultimate goal is, of course, to have a system that is also quantitative, providing information about the shape, extent and composition of the features.
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In recent years there has been a significant amount of work on developing thermal wave systems to nondestructively detect and image features in materials [1-4]. The ultimate goal is, of course, to have a system that is also quantitative, providing information about the shape, extent and composition of the features.
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1974
We consider an infinite array of ions, each fixed at a point of the lattice Zv,v = 1,2 or 3. Each ion has no degrees of freedom except its spin, 1/2, which is described by a spinor, that is a unit vector in \(C^2 ,\left( {\mathop {\dot 1}\limits_0 } \right)\) denoting spin up, ↑, and \(\left( {\mathop 1\limits^0 } \right)\) spin down, ↓.
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We consider an infinite array of ions, each fixed at a point of the lattice Zv,v = 1,2 or 3. Each ion has no degrees of freedom except its spin, 1/2, which is described by a spinor, that is a unit vector in \(C^2 ,\left( {\mathop {\dot 1}\limits_0 } \right)\) denoting spin up, ↑, and \(\left( {\mathop 1\limits^0 } \right)\) spin down, ↓.
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Scatterer Surface Design for Wave Scattering Application
IEEE Transactions on Antennas and Propagation, 2019In this paper, radio wave scattering is considered and an optimal scatterer surface is realized. For this purpose, an ultrawideband and high-efficiency polarization converter unit cell is proposed. Here, the proposed polarization converter unit cell and its mirror are combined to provide 180° phase difference for scattering purposes.
Fereshteh Samadi +3 more
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Chaotic scattering of waves from nonlinear scatterers
Acta Mechanica, 1994zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Moon, F. C., Raggio, G.
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