Radiative cascades in charged quantum dots
E. Poem, Y. Kodriano, C. Tradonsky, D. Gershoni, B. D. Gerardot, P. M., Petroff
TL;DR
This paper reports the first measurement of two-photon radiative cascades in charged quantum dots, revealing direct and indirect cascades, and providing insights into spin dephasing rates of confined carriers.
Contribution
It introduces the first experimental observation of two-photon radiative cascades in charged quantum dots, including the identification of spin blockaded states and relaxation pathways.
Findings
Identification of direct and indirect cascades
Measurement of spin dephasing rates
Observation of spin blockaded intermediate states
Abstract
We measured, for the first time, two photon radiative cascades due to sequential recombination of quantum dot confined electron hole pairs in the presence of an additional spectator charge carrier. We identified direct, all optical cascades involving spin blockaded intermediate states, and indirect cascades, in which non radiative relaxation precedes the second recombination. Our measurements provide also spin dephasing rates of confined carriers.
Peer Reviews
No public reviews on file for this paper yet. If you reviewed it on a platform where reviews are public (OpenReview, ICLR, NeurIPS, ICML), you can paste yours below so the community can read it here.
Videos
No videos yet. Explain this paper in a talk, walkthrough, or lecture? Add one.