Year: 2019
Type: article
Abstract: A strong, far-detuned laser can shift the energy levels of an optically active quantum system via the AC Stark effect. We demonstrate that the polarization of the laser results in a spin-selective modification to the energy structure of a charged quantum dot, shifting one spin manifold but not the other. An additional shift occurs due to the Overhauser field of the nuclear spins, which are pumped into a partially polarized state. This mechanism offers a potentially rapid, reversible, and coherent control of the energy structure and polarization selection rules of a charged quantum dot.
Source: Applied Physics Letters
DOI: 10.1063/1.5084244
Authors: T. A. Wilkinson, D. J. Cottrill, J. M. Cramlet, C. E. Maurer, C. J. Flood, A. S. Bracker, M. Yakes, D. Gammon, E. B. Flagg
Language: English
Subfield: Atomic and Molecular Physics, and Optics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W2903159170