High-speed modulation of a terahertz quantum cascade laser by coherent acoustic phonon pulses

Aniela Dunn; Caroline Poyser; Paul Dean; Aleksandar Demić; Alexander Valavanis; Dragan Indjin; Mohammed Salih; Iman Kundu; Lianhe Li; Andrey Akimov; Alexander Giles Davies; Edmund Linfield; John Cunningham; Anthony Kent

doi:10.1038/s41467-020-14662-w

Nature Communications (Feb 2020)

High-speed modulation of a terahertz quantum cascade laser by coherent acoustic phonon pulses

Aniela Dunn,
Caroline Poyser,
Paul Dean,
Aleksandar Demić,
Alexander Valavanis,
Dragan Indjin,
Mohammed Salih,
Iman Kundu,
Lianhe Li,
Andrey Akimov,
Alexander Giles Davies,
Edmund Linfield,
John Cunningham,
Anthony Kent

Affiliations

Aniela Dunn: School of Electronic and Electrical Engineering, University of Leeds
Caroline Poyser: School of Physics and Astronomy, University of Nottingham
Paul Dean: School of Electronic and Electrical Engineering, University of Leeds
Aleksandar Demić: School of Electronic and Electrical Engineering, University of Leeds
Alexander Valavanis: School of Electronic and Electrical Engineering, University of Leeds
Dragan Indjin: School of Electronic and Electrical Engineering, University of Leeds
Mohammed Salih: School of Electronic and Electrical Engineering, University of Leeds
Iman Kundu: School of Electronic and Electrical Engineering, University of Leeds
Lianhe Li: School of Electronic and Electrical Engineering, University of Leeds
Andrey Akimov: School of Physics and Astronomy, University of Nottingham
Alexander Giles Davies: School of Electronic and Electrical Engineering, University of Leeds
Edmund Linfield: School of Electronic and Electrical Engineering, University of Leeds
John Cunningham: School of Electronic and Electrical Engineering, University of Leeds
Anthony Kent: School of Physics and Astronomy, University of Nottingham

DOI: https://doi.org/10.1038/s41467-020-14662-w
Journal volume & issue: Vol. 11, no. 1
pp. 1 – 8

Abstract

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The typical electronic modulation of terahertz quantum cascade lasers is fundamentally limited at fast timescales by device properties. Here the authors propose and study an alternative, acoustic mechanism for modulating such THz QCLs at high speed.

Published in Nature Communications

ISSN: 2041-1723 (Online)
Publisher: Nature Portfolio
Country of publisher: United Kingdom
LCC subjects: Science
Website: https://www.nature.com/ncomms/

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