SKM 2023 – scientific programme
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HL: Fachverband Halbleiterphysik
HL 7: Poster I
HL 7.65: Poster
Monday, March 27, 2023, 13:00–15:00, P2/EG
Origin of Antibunching in Resonance Fluorescence — •Lukas Hanschke1, Eva Schöll1, Eduardo Zubizarreta Casalengua2,3, Melina Peter4, Ailton Garcia Jr.4, Saimon F. Covre da Silva4, Santanu Manna4, Armando Rastelli4, Kai Müller5, Fabrice P. Laussy3, Elena del Valle2, and Klaus D. Jöns1 — 1PhoQS, CeOPP, and Department of Physics, Paderborn University — 2Departamento de Fisica Teorica de la Materia Condensada, Universidad Autonoma de Madrid — 3Faculty of Science and Engineering, University of Wolverhampton — 4Institute of Semiconductor and Solid State Physics, Johannes Kepler University Linz — 5Walter Schottky Institute, Technical University of Munich
Resonance fluorescence, the coherent emission of a quantum two-level system under weak resonant driving, exhibits sub-natural linewidth and inherits the coherence properties of the excitation laser. While previous experiments suggest that this emission also maintains antibunched, our results prove recent theoretical insights into the origin of the antibunching and the underlying interplay between the coherent and incoherent emission of the quantum system. This allows us to specifically manipulate the composition of the resonance fluorescence by frequency filtering and interference with the excitation laser field to enable single photons with sub-natural linewidth [PRL 123, 170402 (2020)].