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Coherently refreshing hypersonic phonons for light storage

Stiller, Birgit; Merklein, Moritz; Wolff, Christian; Vu, Kkutri; Ma, Pan; Madden, Steve; Eggleton, Benjamin J.

Description

Acoustic waves can serve as memory for optical information; however, propagating acoustic phonons in the gigahertz (GHz) regime decay on the nanosecond time scale. Usually this is dominated by intrinsic acoustic loss due to inelastic scattering of the acoustic waves and thermal phonons. Here we show a way to counteract the intrinsic acoustic decay of the phonons in a waveguide by resonantly reinforcing the acoustic wave via synchronized optical pulses. We experimentally demonstrate coherent...[Show more]

CollectionsANU Research Publications
Date published: 2020-05-08
Type: Journal article
URI: http://hdl.handle.net/1885/268871
Source: Optica
DOI: 10.1364/OPTICA.386535
Access Rights: Open Access

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