Temporal superoscillations of subterahertz coherent acoustic phonons

Temporal superoscillations of subterahertz coherent acoustic phonons

We observe coherent acoustic phonon superoscillations at subterahertz frequencies. The superoscillations result from the interference of optically excited coherent longitudinal acoustic phonon modes in a GaAs/AlGaAs superlattice. The superoscillations are seen in local temporal regions and their fre...

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Bibliographic Details
Main Authors:	S. Brehm, A. V. Akimov, R. P. Campion, A. J. Kent
Format:	Article
Language:	English
Published:	American Physical Society 2020-04-01
Series:	Physical Review Research
Online Access:	http://doi.org/10.1103/PhysRevResearch.2.023009

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