Perturbation analysis of acoustic wave scattering at rough solid-solid interfaces

Huarul Sun; Kevin P. Pipe

doi:10.1063/1.3676250

Perturbation analysis of acoustic wave scattering at rough solid-solid interfaces

Huarul Sun
, Kevin P. Pipe^*

^*Corresponding author for this work

University of Michigan, Ann Arbor

Research output: Contribution to journal › Article › peer-review

16 Scopus citations

Abstract

We apply a boundary perturbation approach to model the scattering of acoustic waves at rough solid-solid interfaces. This method incorporates mode conversion and allows straightforward separation of specular and diffuse components, the relative fractions of which play an important role in determining thermal boundary resistance and the performance of acoustic phonon devices. The effect of acoustic impedance mismatch on the distribution of scattered waves is investigated, as well as the coupling to interface modes.

Original language	English
Article number	023510
Journal	Journal of Applied Physics
Volume	111
Issue number	2
DOIs	https://doi.org/10.1063/1.3676250
State	Published - 15 Jan 2012
Externally published	Yes

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abstract = "We apply a boundary perturbation approach to model the scattering of acoustic waves at rough solid-solid interfaces. This method incorporates mode conversion and allows straightforward separation of specular and diffuse components, the relative fractions of which play an important role in determining thermal boundary resistance and the performance of acoustic phonon devices. The effect of acoustic impedance mismatch on the distribution of scattered waves is investigated, as well as the coupling to interface modes.",

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AB - We apply a boundary perturbation approach to model the scattering of acoustic waves at rough solid-solid interfaces. This method incorporates mode conversion and allows straightforward separation of specular and diffuse components, the relative fractions of which play an important role in determining thermal boundary resistance and the performance of acoustic phonon devices. The effect of acoustic impedance mismatch on the distribution of scattered waves is investigated, as well as the coupling to interface modes.

UR - https://www.scopus.com/pages/publications/84867091428

U2 - 10.1063/1.3676250

DO - 10.1063/1.3676250

M3 - 文章

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JO - Journal of Applied Physics

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Perturbation analysis of acoustic wave scattering at rough solid-solid interfaces

Abstract

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