Independent dynamic acousto-mechanical and electrostatic control of individual quantum dots in a LiNbO-GaAs hybrid
arXiv:1410.5975 · doi:10.1063/1.4905477
Abstract
We demonstrate tuning of single quantum dot emission lines by the combined action of the dynamic acoustic field of a radio frequency surface acoustic wave and a static electric field. Both tuning parameters are set all-electrically in a LiNbO-GaAs hybrid device. The surface acoustic wave is excited directly on the strong piezoelectric LiNbO onto which a GaAs-based p-i-n photodiode containing a single layer of quantum dots was epitaxially transferred. We demonstrate dynamic spectral tuning with bandwidths exceeding 3 meV of single quantum dot emission lines due to deformation potential coupling. The center energy of the dynamic spectral oscillation can be independently programmed simply by setting the bias voltage applied to the diode.
13 pages, 4 figures, revised version, some typos fixed
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- A Hybrid (Al)GaAs-LiNbO Surface Acoustic Wave Resonator for Cavity Quantum Dot Optomechanics
- Dynamic control of the optical emission from GaN/InGaN nanowire quantum dots by surface acoustic waves
- Acoustically regulated optical emission dynamics from quantum dot-like emission centers in GaN/InGaN nanowire heterostructures
- Control of single photon emitters in semiconductor nanowires by surface acoustic waves