TITLE

Band gaps and localization in acoustic propagation in water with air cylinders

AUTHOR(S)
Ye, Zhen; Zhen Ye; Hoskinson, Emile
PUB. DATE
December 2000
SOURCE
Applied Physics Letters;12/25/2000, Vol. 77 Issue 26
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Multiple scattering of waves leads to many peculiar phenomena such as complete band gaps in periodic structures and wave localization in disordered media. Within a band gap, excitations are evanescent; when localized, they remain confined in space until dissipated. Here, we report acoustic band gap and localization in a two-dimensional system of air cylinders in water. Exact numerical calculations reveal the unexpected result that localization is independent of the precise location or organization of the scatterers. Localization occurs within a finite region of frequencies, coincident with the complete band gap for a periodic lattice of scatterers. Inside the gap or localization regime, a previously uninvestigated collective behavior of the cylinders appears. © 2000 American Institute of Physics.
ACCESSION #
4414824

 

Related Articles

  • Model of scattering by a perturbed thin cylinder. Zubok, D. A.; Popov, I. Yu. // Technical Physics Letters;Mar99, Vol. 25 Issue 3, p223 

    A model of wave scattering by a perturbed thin cylinder is constructed. The model is based on the theory of self-adjoint operator extensions. A method is found for choosing a model operator ensuring that the model solution is identical to the leading term of the asymptotic expansion, in terms of...

  • Scattering of Plane Electromagnetic Waves by a Chiral–Metal Cylinder. Neganov, V. A.; Osipov, O. V. // Technical Physics Letters;Jan2000, Vol. 26 Issue 1, p38 

    The problem of scattering of E- and H-polarized plane electromagnetic waves by a metal cylinder covered with a chiral layer is solved by the method of partial regions. The scattering field is studied in the near and far zones. The correlation between the type of polarization of the incident...

  • Formation of a Deep Scattering Layer in a Stratified Flow behind a Two-Dimensional Obstacle. Prokhorov, V. E. // Acoustical Physics;Jan2001, Vol. 47 Issue 1, p106 

    A stratified stationary flow around a circular cylinder is accompanied by the formation of a thin, acoustically contrasting layer extending along the horizontal axis of the flow. The theoretical and experimental studies show that the pressure differential and the backscattering coefficient of...

  • Transient, combined conduction and radiation in an absorbing, emitting, and isotropically scattering solid cylinder. Tsai, J. R.; Özisik, M. N. // Journal of Applied Physics;10/15/1988, Vol. 64 Issue 8, p3820 

    Presents a study that solved transient combined conduction and radiation in an absorbing, emitting and isotropically scattering solid cylinder. Use of the collocation method and the implicit finite difference scheme; Results and discussion; Conclusion.

  • Giant sonic stop bands in two-dimensional periodic system of fluids. Kushwaha, M.S.; Djafari-Rouhani, B. // Journal of Applied Physics;11/1/1998, Vol. 84 Issue 9, p4677 

    Presents a study which examined the presence of sonic stop bands in two-dimensional (2D) periodic arrays of air cylinders in water. Details on the low filling fraction and huge density contrast in air and water; Reference made to the discovery of photonic crystals; Investigation of 2D periodic...

  • FEM analysis of bulk wave scattering at an inclusion. Ito, T.; Kawashima, K.; Omote, R.; Takatsubo, J.; Imade, M. // AIP Conference Proceedings;2000, Vol. 509 Issue 1, p97 

    Ultrasonic wave scattering at interface of a cylindrical solder embedded in an aluminum block is analyzed by finite element method under plane strain. For nondestructive characterization of inclusion, the analysis of ultrasonic wave scattering at heterogeneous, anisotropic and irregular shaped...

  • SCATTERING BY CLOSELY SPACED INFINITE CYLINDERS IN AN ABSORBING MEDIUM. Siu-Chun Lee // AAPP | Physical, Mathematical & Natural Sciences / Atti della Ac;Dec2011 Supplement, Vol. 89 Issue S1, p055-1 

    Scattering by closely spaced parallel infinite cylinders in an absorbing medium is considered in this paper. The source wave is arbitrarily polarized and propagates in a general direction at the cylinders. The formulation utilizes the Hertz potential approach, and the scattering cross section...

  • Transmission of acoustic waves through 2D phononic crystal: visco-thermal and multiple scattering effects. A. Duclos; D. Lafarge; V. Pagneux // European Physical Journal - Applied Physics;Jan2009, Vol. 45 Issue 1, p11302 

    In this paper, we are interested in the transition between regimes where either visco-thermal or multiple scattering effects dominate for the propagation of acoustic waves through a 2D regular square array of rigid cylinders embedded in air. An extension of the numerical method using Schl?milch...

  • DISPERSIÓN DE ONDAS ELECTROMAGNÉTICAS PLANAS UNIFORMES POR CILINDROS ELÍPTICOS CONDUCTORES PERFECTOS. J. E., Castro; A., Rúgeles // Revista Colombiana de Física;2006, Vol. 38 Issue 1, p161 

    Herein, we analyzed the scattering of monochromatic plane electromagnetic waves by elliptic perfect-conducting cylinders. Using integral equations, we calculated the current density induced on the cylinder and valued the scattering field in the far zone.

Share

Read the Article

Courtesy of THE LIBRARY OF VIRGINIA

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics