Picosecond control of quantum dot laser emission by coherent phonons

Czerniuk, T. and Wigger, D. and Akimov, A.V. and Schneider, C. and Kamp, M. and Höfling, S. and Yakovlev, D.R. and Kuhn, T. and Reiter, D.E. and Bayer, M. (2017) Picosecond control of quantum dot laser emission by coherent phonons. Physical Review Letters, 118 (13). 133901/1-133901/5. ISSN 1079-7114

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Abstract

A picosecond acoustic pulse can be used to control the lasing emission from semiconductor nanostructures by shifting their electronic transitions. When the active medium, here an ensemble of (In,Ga)As quantum dots, is shifted into or out of resonance with the cavity mode, a large enhancement or suppression of the lasing emission can dynamically be achieved. Most interesting, even in the case when gain medium and cavity mode are in resonance, we observe an enhancement of the lasing due to shaking by coherent phonons. In order to understand the interactions of the nonlinearly coupled photon-exciton-phonon subsystems, we develop a semiclassical model and find an excellent agreement between theory and experiment.

Item Type: Article
Schools/Departments: University of Nottingham, UK > Faculty of Science > School of Physics and Astronomy
Identification Number: 10.1103/PhysRevLett.118.133901
Depositing User: Eprints, Support
Date Deposited: 28 Mar 2017 11:22
Last Modified: 13 Oct 2017 01:18
URI: http://eprints.nottingham.ac.uk/id/eprint/41608

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