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Proceedings Paper

Theory of an optically driven quantum-dot phonon laser
Author(s): Leon Droenner; Julia Kabuss
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Paper Abstract

We present a semiclassical theory of an optically pumped quantum dot phonon laser, based on a system of N quantum dots coupled to a high-Q acoustic phonon cavity. Based on a theory developed earlier [J. Kabuss, A. Carmele, and A. Knorr, Phys. Rev. B 88, 064305 (2013)], that was limited to the single emitter limit, a set of phonon laser equations is generalized to the many emitter regime and solved analytically. Similar to the optical laser it is possible to overcome the adverse effect of a phonon cavity loss with respect to entering the phonon laser regime by the number of quantum dots, that are coupled to the phonon resonator mode. Especially in the case of the proposed quantum dot phonon laser, which exhibits self-quenching, a shift of the laser threshold to lower pump powers and an inhibition of the self-quenching can be essential for entering the phonon lasing regime in the first place.

Paper Details

Date Published: 16 March 2015
PDF: 8 pages
Proc. SPIE 9357, Physics and Simulation of Optoelectronic Devices XXIII, 93570P (16 March 2015); doi: 10.1117/12.2081870
Show Author Affiliations
Leon Droenner, Technische Univ. Berlin (Germany)
Julia Kabuss, Technische Univ. Berlin (Germany)

Published in SPIE Proceedings Vol. 9357:
Physics and Simulation of Optoelectronic Devices XXIII
Bernd Witzigmann; Marek Osiński; Fritz Henneberger; Yasuhiko Arakawa, Editor(s)

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