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Main Title: Two-photon interference from remote deterministic quantum dot microlenses
Author(s): Thoma, Alexander
Schnauber, Peter
Böhm, J.
Gschrey, Manuel
Schulze, Jan-Hindrik
Strittmatter, André
Rodt, Sven
Heindel, Tobias
Reitzenstein, Stephan
Type: Article
Language Code: en
Abstract: We report on two-photon interference (TPI) experiments using remote deterministic single-photon sources. Employing 3D in-situ electron-beam lithography, we fabricate quantum-light sources at specific target wavelengths by integrating pre-selected semiconductor quantum dots within monolithic microlenses. The individual single-photon sources show TPI visibilities of 49% and 22%, respectively, under pulsed p-shell excitation at 80 MHz. For the mutual TPI of the remote sources, we observe an uncorrected visibility of 29%, in quantitative agreement with the pure dephasing of the individual sources. Due to its efficient photon extraction within a broad spectral range (>20 nm), our microlens-based approach is predestinated for future entanglement swapping experiments utilizing entangled photon pairs emitted by distant biexciton-exciton radiative cascades.
Issue Date: 3-Jan-2017
Date Available: 23-Apr-2020
DDC Class: 530 Physik
Subject(s): two-photon interference
quantum dot
quantum-light source
Sponsor/Funder: DFG, 43659573, SFB 787: Halbleiter - Nanophotonik: Materialien, Modelle, Bauelemente
EC/FP7/615613/EU/External Quantum Control of Photonic Semiconductor Nanostructures/EXQUISITE
Journal Title: Applied Physics Letters
Publisher: American Institute of Physics (AIP)
Publisher Place: Melville, NY
Volume: 110
Issue: 1
Article Number: 011104
Publisher DOI: 10.1063/1.4973504
EISSN: 1077-3118
ISSN: 0003-6951
Notes: This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. This article appeared in Appl. Phys. Lett. 110, 011104 (2017) and may be found at
Appears in Collections:AG Optoelektronik und Quantenbauelemente » Publications

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