Lifetime of sub-THz coherent acoustic phonons in a GaAs-AlAs superlattice

Lifetime of sub-THz coherent acoustic phonons in a GaAs-AlAs superlattice

We measure the lifetime of the zone-center 340 GHz longitudinal phonon mode in a GaAs-AlAs superlattice excited and probed with femtosecond laser pulses. By comparing measurements conducted at room temperature and liquid nitrogen temperature, we separate the intrinsic (phonon-phonon scattering) and...

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Bibliographic Details
Main Authors:	Maznev, A, Hofmann, F, Jandl, A, Esfarjani, K, Bulsara, M, Fitzgerald, E, Chen, G, Nelson, K
Format:	Journal article
Language:	English
Published:	2013

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