Mode conversion of phonons reflected by superlattices with a free surface

Seiji Mizuno,

Corresponding Author

Seiji Mizuno

[email protected]

Department of Applied Physics, Graduate School of Engineering, Hokkaido University, Sapporo 060-8628, Japan

Phone: +81 11 706 6715, Fax: +81 11 706 6715Search for more papers by this author

Seiji Mizuno,

Corresponding Author

Seiji Mizuno

[email protected]

Department of Applied Physics, Graduate School of Engineering, Hokkaido University, Sapporo 060-8628, Japan

Phone: +81 11 706 6715, Fax: +81 11 706 6715Search for more papers by this author

First published: 16 November 2004

https://doi.org/10.1002/pssc.200405303

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Abstract

We study theoretically the resonant interaction of surface-localized modes with acoustic phonons injected from a substrate into a SL with a free surface at an angle. We calculate the frequency dependence of reflectance and examine the mode conversion generated by the localized modes in the different types of frequency gaps. In particular, we predict a “perfect” resonant reflection inside frequency gaps in which intermode Bragg reflections occur. (© 2004 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim)

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