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Phonon-Assisted Gain in a Semiconductor Double Quantum Dot Maser

Abstract

We develop a microscopic model for the recently demonstrated double-quantum-dot maser. In characterizing the gain of this device we find that, in addition to the direct stimulated emission of photons, there is a large contribution from the simultaneous emission of a photon and a phonon, i.e., the phonon sideband. We show that this phonon-assisted gain typically dominates the overall gain, which leads to masing. Recent experimental data are well fit with our model.

Publication Details

Authors
Publication Type
Journal Article
Year of Publication
2015
Journal
Physical Review Letters
Volume
114
Date Published
05/2014