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