Spin light emitting diode based on exciton fine structure tuning in quantum dots

Autor:	Shumilin, A. V., Shamirzaev, T. S., Smirnov, D. S.
Rok vydání:	2023
Předmět:	Condensed Matter - Mesoscale and Nanoscale Physics
Druh dokumentu:	Working Paper
Popis:	We propose a concept of quantum dot based light emitting diode that produces circularly polarized light due to the tuning of the exciton fine structure by magnetic field and electron nuclear hyperfine interaction. The device operates under injection of electrons and holes from nonmagnetic contacts in a small field of the order of milliteslas. Its size can be parametrically smaller than the light wavelength, and circular polarization degree of electroluminescence can reach 100%. The proposed concept is compatible with the micropillar cavities, which allows for the deterministic electrical generation of single circularly polarized photons. Comment: 6+4 pages, 3+1 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2306.12868 Zobrazit plný text záznamu View this record from Arxiv