Abstract
A full quantum theory is developed for semiconductor quantum ring photoluminescence. The computations show that the orbital angular momentum (OAM) of individual excitons yields strong angle-dependent emission. The characteristic OAM signatures also survive significant amount of dephasing, suggesting efficient quantum-level coupling between quantum-ring excitons and the OAM of light.
Highlights
The realization of schemes that make orbital angular momentum (OAM) of light detectable has opened new possibilities to study light–matter interaction [1,2,3,4]
We show that even a single quantum ring (QR) produces a significant OAM coupling and that the angleresolved PL is highly dependent on the OAM distribution of excitons
We have studied angle-of-emission resolved PL from a semiconductor QR structure
Summary
A full quantum theory is developed for semiconductor quantum ring photoluminescence. Computations show that the orbital angular momentum (OAM) of individual excitons yields strong. Any further distribution of this work must maintain angle-dependent emission. The characteristic OAM signatures survive significant amount of attribution to the dephasing, suggesting efficient quantum-level coupling between quantum-ring excitons and the author(s) and the title of the work, journal citation
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