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Protected Long-Distance Guiding of Hypersound Underneath a Nanocorrugated Surface

Yaremkevich, Dmytro D.; Scherbakov, Alexey V.; Kukhtaruk, Serhii M.; Linnik, Tetiana L.; Khokhlov, Nikolay E.; Godejohann, Felix; Dyatlova, Olga A.; Nadzeyka, Achim; Pattnaik, Debi P.; Wang, Mu; Roy, Syamashree; Campion, Richard P.; Rushforth, Andrew W.; Gusev, Vitalyi E.; Akimov, Andrey V.; Bayer, Manfred

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Dmytro D. Yaremkevich

Alexey V. Scherbakov

Serhii M. Kukhtaruk

Tetiana L. Linnik

Nikolay E. Khokhlov

Felix Godejohann

Olga A. Dyatlova

Achim Nadzeyka

Debi P. Pattnaik

Mu Wang

Syamashree Roy

Vitalyi E. Gusev

Principal Research Fellow

Manfred Bayer


In nanoscale communications, high-frequency surface acoustic waves are becoming effective data carriers and encoders. On-chip communications require acoustic wave propagation along nanocorrugated surfaces which strongly scatter traditional Rayleigh waves. Here, we propose the delivery of information using subsurface acoustic waves with hypersound frequencies of ?20 GHz, which is a nanoscale analogue of subsurface sound waves in the ocean. A bunch of subsurface hypersound modes are generated by pulsed optical excitation in a multilayer semiconductor structure with a metallic nanograting on top. The guided hypersound modes propagate coherently beneath the nanograting, retaining the surface imprinted information, at a distance of more than 50 ?m which essentially exceeds the propagation length of Rayleigh waves. The concept is suitable for interfacing single photon emitters, such as buried quantum dots, carrying coherent spin excitations in magnonic devices and encoding the signals for optical communications at the nanoscale.

Journal Article Type Article
Acceptance Date Jan 29, 2021
Online Publication Date Feb 16, 2021
Publication Date Mar 23, 2021
Deposit Date Feb 19, 2021
Publicly Available Date Mar 4, 2021
Journal ACS Nano
Print ISSN 1936-0851
Electronic ISSN 1936-086X
Publisher American Chemical Society
Peer Reviewed Peer Reviewed
Volume 15
Issue 3
Pages 4802–4810
Keywords General Engineering; General Physics and Astronomy; General Materials Science
Public URL
Publisher URL


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