Sun, T.-J.; Sterin, P.; Lengert, L.; Nawrath, C.; Jetter, M. et al.: Non-equilibrium spin noise spectroscopy of a single quantum dot operating at fiber telecommunication wavelengths. In: Journal of applied physics : AIP's archival journal for significant new results in applied physics 131 (2022), Nr. 6, 065703. DOI: https://doi.org/10.1063/5.0078910
Abstract: | |
We report on the spin and occupation noise of a single, positively charged (InGa)As quantum dot emitting photons in the telecommunication C-band. The spin noise spectroscopy measurements are carried out at a temperature of 4.2 K in dependence on intensity and detuning in the regime beyond thermal equilibrium. The spin noise spectra yield in combination with an elaborate theoretical model the hole-spin relaxation time of the positively charged quantum dot and the Auger recombination and the electron-spin relaxation time of the trion state. The extracted Auger recombination time of this quantum dot emitting at 1.55 μm is comparable to the typical Auger recombination times on the order of a few μs measured in traditionally grown InAs/GaAs quantum dots emitting at around 900 nm. | |
License of this version: | CC BY 4.0 Unported |
Document Type: | Article |
Publishing status: | publishedVersion |
Issue Date: | 2022 |
Appears in Collections: | Fakultät für Mathematik und Physik |
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