Rayleigh-wave attenuation by a semi-infinite two-dimensional elastic-band-gap crystal

Meseguer, F.; Holgado, Miguel; Caballero, David; Benaches, N.; Sánchez‐Dehesa, José; López, Carmelo; Lull, Cristina

doi:10.1103/physrevb.59.12169

Cited by 124 publications

(88 citation statements)

References 19 publications

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“…The hole scatterer-solid host configurations and their full band gap effect were demonstrated for surface acoustic waves on two-dimensional phononic crystal in the sub-meter scales, such as a piezoelectric phononic crystals [15][16][17]. As a result of scalability features of two dimensional crystal lattice with respect to wavelength ( a  is constant), the similar band gap effects can be obtained for the seismic waves via a larger crystal implementation in the scales of kilometers [14]. This idea was our basic motivation in this theoretical work.…”

Section: Introductionmentioning

confidence: 63%

“…In recent research about photonic, phononic and sonic crystals, band gaps were observed in the band structure characteristics of crystals with various lattice geometries [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20]. As crystal structures exhibit very low transmission in the frequencies within band gaps, they were also referred to as "stop bands."…”

Section: Introductionmentioning

confidence: 99%

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Towards Earthquake Shields: A Numerical Investigation of Earthquake Shielding with Seismic Crystals

Alagöz¹,

Alagoz²

2011

OJA

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Authors numerically demonstrate that the seismic surface waves from an earthquake can be attenuated by a seismic crystal structure constructed on the ground. In the study, seismic crystals with a lattice constant of kilometer are investigated in the aspect of band gaps (Stop band), and some design considerations for earthquake shielding are discussed for various crystal configurations in a theoretical manner. Authors observed in their FDTD based 2D wave simulation results that the proposed earthquake shield can provide a decreasing in magnitude of surface seismic waves. Such attenuation of seismic waves might reduce the damage in an earthquake.

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Section: Introductionmentioning

confidence: 63%

Section: Introductionmentioning

confidence: 99%

Towards Earthquake Shields: A Numerical Investigation of Earthquake Shielding with Seismic Crystals

Alagöz¹,

Alagoz²

2011

OJA

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“…[22][23][24] Similar functionalities have been demonstrated for semi-infinite systems. 25 and PC plates. 26,27 In spite of more than 20 years of research, PCs have found limited success in transitioning from the laboratory to industry.…”

Section: Introductionmentioning

confidence: 99%

Optically tunable acoustic wave band-pass filter

2014

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The acoustic properties of a hybrid composite that exhibits both photonic and phononic behavior are investigated numerically with finite-element and finite-difference time-domain simulations. The structure is constituted of a periodic array of photonic resonant cavities embedded in a background superlattice. The resonant cavities contain a photo-elastic chalcogenide glass that undergoes atomic-scale structural reorganization when irradiated with light having energy close to its band-gap. Photo-excitation of the chalcogenide glass changes its elastic properties and, consequently, augments the acoustic transmission spectrum of the composite. By modulating the intensity of light irradiating the hybrid photonic/phononic structure, the position and spectral width of phonon passing-bands can be controlled. This demonstration offers the technological platform for optically-tunable acoustic wave band-pass filters.

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“…6 Recently, Meseguer et al have studied the scattering of Rayleigh waves by a periodic array of cylindrical holes drilled perpendicular to the surface of a marble quarry. 7 The cylindrical holes were arranged in periodic arrays of both honeycomb and triangular lattices. By recording the attenuation spectra of the surface waves, Meseguer et al observed the existence of absolute band gaps for elastic waves in these semi-infinite two-dimensional crystals.…”

Section: Introductionmentioning

confidence: 99%

Localization of Rayleigh waves

2000

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We study the localization of Rayleigh waves propagating in a semi-infinite and isotropic medium with inhomogeneities that are modeled as rods parallel to the incoming wave front and are distributed randomly up to a maximum depth. For a perfectly smooth surface, the localization length of a Rayleigh wave is predicted to reach a minimum at intermediate wavelength and to diverge for both low and large values of . For large , the divergence results from the fact that the strength of each scatterer is proportional to 2 , where is the angular frequency of the incident Rayleigh wave. For small , the divergence results from Rayleigh waves propagating closer to the surface and therefore being sensitive to a decreasing number of impurities.

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Rayleigh-wave attenuation by a semi-infinite two-dimensional elastic-band-gap crystal

Cited by 124 publications

References 19 publications

Towards Earthquake Shields: A Numerical Investigation of Earthquake Shielding with Seismic Crystals

Towards Earthquake Shields: A Numerical Investigation of Earthquake Shielding with Seismic Crystals

Optically tunable acoustic wave band-pass filter

Localization of Rayleigh waves

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