Group velocity in strongly scattering media
WebJun 26, 2024 · The effective dynamic bulk modulus and density are presented for random media consisting of particles in a viscous host fluid, using a core-shell, self-consistent effective medium model, under the large compressional wavelength assumption. WebThe quantum effect on the Wigner time-delay and distribution for the polarization scattering in a semiclassical dense plasma is explored. The partial wave analysis is applied for a partially ionized dense plasma to derive the phase shift for the polarization interaction. The Wigner time-delay and the Wigner distribution are derived for the electron–atom …
Group velocity in strongly scattering media
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WebGroup velocity is important because surface-wave energy propagates mainly in constructively interfering wave packets that propagate with group velocity. Given a … WebDec 16, 2024 · We show that considerable slowdown of the group velocity is caused not by resonant phenomena or localization but rather by very strong scattering and destructive …
WebFeb 2, 1996 · Investigation of the ballistic propagation of acoustic waves through a resonantly scattering, inhomogeneous medium indicates that although the ballistic signal remains coherent with the incident pulse, it is nevertheless strongly affected by scattering … WebThe propagation of the scattered waves is also strongly affected by resonant scattering, and is shown to be well described by using the diffusion approximation. A model based …
WebJul 1, 1997 · Abstract. The transport of classical waves in strongly scattering media is investigated using ultrasonic techniques, allowing us to measure both the ballistic and …
WebThe group velocity surface for the quasi-SV wave is shown in Fig. 6.33B.This group velocity surface is not smooth, but it displays a very sharp variation near the Ox 2 x 3 …
WebThese scattering media are known to have correlation times of at least several hours—far longer than that of biological tissues, which typically have a correlation time of less than 1 ms due to physiological motions, such as breathing, heartbeats, and blood flow ( 8 ). grateful recoveryWebFeb 2, 1996 · Investigation of the ballistic propagation of acoustic waves through a resonantly scattering, inhomogeneous medium indicates that although the ballistic … grateful red strainWebThe answer was provided experimentally by atomic experimentalists, who found a way to modify the interaction strength in ultracold trapped systems by the magnetic field, which … chlorinated isocyanurate tabletWebA wave’s group velocity is one of its most important properties. It characterizes the speed at which signals can be transmitted. For waves traveling in a material medium, the group … chlorinated isosWebIt is shown that the velocity of the coherent wave in random media is neither phase nor group velocity. Frequency- and time-domain experiments are conducted to study the effective propagation constant of the coherent wave in a dense strongly scattering medium. A wide-band microwave signal (10-40 GHz) is propagated through randomly … grateful red beerhttp://sheng.people.ust.hk/?p=254 grateful red bike tail light reviewWebNov 1, 1998 · This allows us to show that the velocities are substantially slowed down both by (i) resonant scattering from the glass spheres, where energy is trapped within the solid scatterers, and by (ii) tortuosity effects, where the wave energy is largely confined to the tortuous fluid pathways. grateful quote of the day