Material anisotropy unveiled by random scattering of surface acoustic waves
| Autor: | Kimmo Kokkonen, Vincent Laude, Sarah Benchabane, Matti Kaivola |
|---|---|
| Přispěvatelé: | Franche-Comté Électronique Mécanique, Thermique et Optique - Sciences et Technologies ( FEMTO-ST ), Université de Technologie de Belfort-Montbeliard ( UTBM ) -Ecole Nationale Supérieure de Mécanique et des Microtechniques ( ENSMM ) -Centre National de la Recherche Scientifique ( CNRS ) -Université de Franche-Comté ( UFC ), Optics and Molecular Materials Laboratory, Helsinki University of Technology ( TKK ), FEMTO-ST / Aalto University, Franche-Comté Électronique Mécanique, Thermique et Optique - Sciences et Technologies (UMR 6174) (FEMTO-ST), Université de Technologie de Belfort-Montbeliard (UTBM)-Ecole Nationale Supérieure de Mécanique et des Microtechniques (ENSMM)-Université de Franche-Comté (UFC), Université Bourgogne Franche-Comté [COMUE] (UBFC)-Université Bourgogne Franche-Comté [COMUE] (UBFC)-Centre National de la Recherche Scientifique (CNRS), TKK Helsinki University of Technology (TKK), Perustieteiden korkeakoulu, School of Science, Teknillisen fysiikan laitos, Department of Applied Physics, Aalto-yliopisto, Aalto University |
| Jazyk: | angličtina |
| Rok vydání: | 2011 |
| Předmět: |
Physical acoustics
Physics and Astronomy (miscellaneous) Acoustic interferometer 02 engineering and technology anisotropy acoustic waves Interference (wave propagation) 01 natural sciences symbols.namesake Speckle pattern Optics specle Acoustical properties of solids 0103 physical sciences acoustic wave scattering Acoustic wave equation Acoustical properties Rayleigh wave 010306 general physics [ PHYS.MECA.ACOU ] Physics [physics]/Mechanics [physics]/Acoustics [physics.class-ph] Physics [SPI.ACOU]Engineering Sciences [physics]/Acoustics [physics.class-ph] business.industry [ SPI.ACOU ] Engineering Sciences [physics]/Acoustics [physics.class-ph] Surface acoustic wave Acoustic wave acoustic scattering surface acoustic waves 021001 nanoscience & nanotechnology [PHYS.MECA.ACOU]Physics [physics]/Mechanics [physics]/Acoustics [physics.class-ph] Fourier transforms light interferometry symbols 0210 nano-technology business |
| Zdroj: | Applied Physics Letters Applied Physics Letters, American Institute of Physics, 2011, 98, pp.3506. 〈10.1063/1.3554424〉 Applied Physics Letters, American Institute of Physics, 2011, 98, pp.3506. ⟨10.1063/1.3554424⟩ |
| ISSN: | 0003-6951 |
| DOI: | 10.1063/1.3554424〉 |
| Popis: | International audience; We consider launching a monochromatic surface acoustic wave packet on a large set of random scatterers. The interference of the multiple scattered waves creates a random pattern of ripples on the crystal surface that is recorded by optical interferometry. The Fourier transform of the amplitude and phase data of the measured wave field unveils the complete slowness curve, i.e., the wave-vector as a function of the propagation angle. A simple acoustic speckle model is proposed to explain this observation. |
| Databáze: | OpenAIRE |
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