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Impact of particles size and multiple scattering on the propagation of waves in stealth hyperuniform media

Abstract : Propagation of waves in materials that exhibit stealth-hyperuniform long range correlations is investigated. By using a modal decomposition of the field that takes multiple scattering into account at all orders, we study the impact of the concentration of particles on the transparency of such materials at low frequency. An upper frequency limit for transparency is defined that include both the particles size and the degree of stealthiness. We show that the independent scattering approximation is not relevant to calculate elastic mean free paths when wavelength become comparable to the size of particles. We find that transparency is very robust with regard to the degree of heterogeneity of the host random medium and the polydispersity of particles. Finally, it is shown that resonances can be used as frequency filter.
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https://hal.archives-ouvertes.fr/hal-02896698
Contributor : Adrien Rohfritsch <>
Submitted on : Wednesday, July 15, 2020 - 12:40:44 PM
Last modification on : Saturday, July 18, 2020 - 3:18:15 AM

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  • HAL Id : hal-02896698, version 2

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Adrien Rohfritsch, Jean-Marc Conoir, Tony Valier-Brasier, Régis Marchiano. Impact of particles size and multiple scattering on the propagation of waves in stealth hyperuniform media. 2020. ⟨hal-02896698v2⟩

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