Academic literature on the topic 'Plasma Dispersion effect'

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Journal articles on the topic "Plasma Dispersion effect"

1

KNELLER, M., and R. SCHLICKEISER. "Mode limitation and mode completion in collisionless plasmas." Journal of Plasma Physics 60, no. 1 (1998): 193–202. http://dx.doi.org/10.1017/s0022377898006485.

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The relativistically correct solution of the dispersion relation of linear plasma waves in an isotropic unmagnetized equilibrium electron plasma leads to two new effects unknown from the nonrelativistic dispersion theory. First, the number of damped subluminal modes is limited to a few (mode-limitation effect); secondly, for relativistic plasma temperatures the few individual modes complement each other in the sense that the dispersion relations ωR=ωR(k) continuously match each other (mode-completion effect). The second effect does not occur at nonrelativistic temperatures.
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2

Ribeiro, Ana I., Martina Modic, Uros Cvelbar, et al. "Effect of Dispersion Solvent on the Deposition of PVP-Silver Nanoparticles onto DBD Plasma-Treated Polyamide 6,6 Fabric and Its Antimicrobial Efficiency." Nanomaterials 10, no. 4 (2020): 607. http://dx.doi.org/10.3390/nano10040607.

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Polyvinylpyrrolidone-coated silver nanoparticles (PVP-AgNPs) dispersed in ethanol, water and water/alginate were used to functionalize untreated and dielectric barrier discharge (DBD) plasma-treated polyamide 6,6 fabric (PA66). The PVP-AgNPs dispersions were deposited onto PA66 by spray and exhaustion methods. The exhaustion method showed a higher amount of deposited AgNPs. Water and water-alginate dispersions presented similar results. Ethanol amphiphilic character showed more affinity to AgNPs and PA66 fabric, allowing better uniform surface distribution of nanoparticles. Antimicrobial effec
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3

SHOKRI, B. "The effect of quantum oscillation in plasmas." Journal of Plasma Physics 67, no. 5 (2002): 329–37. http://dx.doi.org/10.1017/s0022377802001666.

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Making use of the dielectric permitivitty of a solid state plasma obtained from linearizing a quantum hydrodynamic equation, volume and surface waves in cold semibounded plasma-like media and thin layers of solid state plasmas are investigated in the presence and absence of an external magnetic field. It is shown that quantum oscillation of free charged particles and its spatial dispersion even in cold plasmas lead to new spectra of collective oscillations. Furthermore, a new volume ion-acoustic-type wave is obtained with a quadratic dependence on the wavenumber in the long-wavelength limit. M
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4

Ataei, Elahe, Mehdi Sharifian, and Najmeh Zare Bidoki. "Magnetized plasma photonic crystals band gap." Journal of Plasma Physics 80, no. 4 (2014): 581–92. http://dx.doi.org/10.1017/s0022377814000105.

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In this paper, the effect of the magnetic field on one-dimensional plasma photonic crystal band gaps is studied. The one-dimensional fourfold plasma photonic crystal is applied that contains four periodic layers of different materials, namely plasma1–MgF2–plasma2–glass in one unit cell. Based on the principle of Kronig–Penney's model, dispersion relation for such a structure is obtained. The equations for effective dielectric functions of these two modes are theoretically deduced, and dispersion relations for transverse electric (TE) and transverse magnetic (TM) waves are calculated. At first,
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5

Cheng, Li-Hong, and Ju-Kui Xue. "Laser-electron interaction in plasma channel with dispersion effect." Journal of Physics: Conference Series 875 (July 2017): 022038. http://dx.doi.org/10.1088/1742-6596/875/3/022038.

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6

Pinhas, Hadar, Omer Wagner, Yossef Danan, Meir Danino, Zeev Zalevsky, and Moshe Sinvani. "Plasma dispersion effect based super-resolved imaging in silicon." Optics Express 26, no. 19 (2018): 25370. http://dx.doi.org/10.1364/oe.26.025370.

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7

Zhu, Qi, Xin Ma, Xing Cao, et al. "Assessment of applicability of cold plasma dispersion relation of slot region hiss based on Van Allen Probes observations." Acta Physica Sinica 71, no. 5 (2022): 051101. http://dx.doi.org/10.7498/aps.71.20211671.

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Electron scattering caused by plasmapheric hiss is the dominant mechanism that is responsible for the formation of slot region (1.8 ≤ <i>L</i> ≤ 3) between the Earth’s inner and outer radiation belts. The cold plasma dispersion relation of plasmaspheric hiss is widely used to quantify its scattering effect on energetic electrons. However, the existence of hot plasmas in the realistic magnetospheric environment will modify the dispersion properties of plasmaspheric hiss. According to Van Allen Probes observations, we select all hiss events in the slot region and compare the observed
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8

MENGESHA, ALEMAYEHU, and S. B. TESSEMA. "Effect of viscosity on propagation of MHD waves in astrophysical plasma." Journal of Plasma Physics 79, no. 5 (2013): 535–44. http://dx.doi.org/10.1017/s0022377813000020.

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AbstractWe determine the general dispersion relation for the propagation of magnetohydrodynamic (MHD) waves in an astrophysical plasma by considering the effect of viscosity with an anisotropic pressure tensor. Basic MHD equations have been derived and linearized by the method of perturbation to develop the general form of the dispersion relation equation. Our result indicates that an astrophysical plasma with an anisotropic pressure tensor is stable in the presence of viscosity and a strong magnetic field at considerable wavelength.
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9

Siddique, M., M. Jamil, A. Rasheed, F. Areeb, Asif Javed, and P. Sumera. "Impact of Relativistic Electron Beam on Hole Acoustic Instability in Quantum Semiconductor Plasmas." Zeitschrift für Naturforschung A 73, no. 2 (2018): 135–41. http://dx.doi.org/10.1515/zna-2017-0275.

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AbstractWe studied the influence of the classical relativistic beam of electrons on the hole acoustic wave (HAW) instability exciting in the semiconductor quantum plasmas. We conducted this study by using the quantum-hydrodynamic model of dense plasmas, incorporating the quantum effects of semiconductor plasma species which include degeneracy pressure, exchange-correlation potential and Bohm potential. Analysis of the quantum characteristics of semiconductor plasma species along with relativistic effect of beam electrons on the dispersion relation of the HAW is given in detail qualitatively an
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10

CHISTYAKOV, M. V., and D. A. RUMYANTSEV. "COMPTON EFFECT IN STRONGLY MAGNETIZED PLASMA." International Journal of Modern Physics A 24, no. 20n21 (2009): 3995–4008. http://dx.doi.org/10.1142/s0217751x09043018.

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The process of Compton scattering γe± → γe± in strongly magnetized hot and cold electron–positron plasma is considered. The analytical expressions for the partial cross-sections in rarefied plasma and the simple expressions for the photon absorption rates in degenerate plasma are obtained. The numerical estimations of the absorption rates for various scattering channels are presented taking into account of the photon dispersion and wave function renormalization in strong magnetic field and plasma. The comparison of the scattering absorption rate with photon splitting probability shows the exis
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