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29 papers
Cathodoluminescence Study of a Quantum Dot in a Nanowire for Single-Photon Emission
Francis Granger, Fabrice Donatini, Edith Bellet-Amalric +4
Cathodoluminescence in a scanning electron microscope was applied to a semiconductor quantum dot in a nanowire able to emit single photons. We show that cathodoluminescence can be…
Calibration-free measurement of the phonon temperature around a single emitter
Francis Granger, Edith Bellet-Amalric, Kuntheak Kheng +3
The emission properties of a localized solid-state emitter are strongly influenced by its environment. The coupling to acoustic phonons impacts the coherence of the emitter and its…
Brightness and purity of a room-temperature single-photon source in the blue-green range
Francis Granger, Saransh Raj Gosain, Gilles Nogues +4
Single-photon sources are crucial for developing secure telecommunications. However, most systems operate at cryogenic temperatures. Here, we discuss a promising solid-state system…
Quantitative analysis of the blue-green single-photon emission from a quantum dot in a thick tapered nanowire
Saransh Raj Gosain, Edith Bellet-Amalric, Eric Robin +5
Quantum dots acting as single photon emitters in the blue-green range are fabricated and characterized at cryogenic temperature. They consist in CdSe dots inserted in (Zn,Mg)Se nan…
Light-hole states in a strained quantum dot: numerical calculation and phenomenological models
K. Moratis, J. Cibert, D. Ferrand +1
Starting from the numerical solution of the 6-band \textbf{k.p} description of a lattice-mismatched ellipsoidal quantum dot situated inside a nanowire, including a spin Zeeman effe…
Light / heavy hole switching with correlated characterization on a single quantum dot : Probing the light hole / heavy hole switching with correlated magneto-optical spectroscopy and chemical analysis on a single quantum dot
Alberto Artioli, Pamela Rueda-Fonseca, Kimon Moratis +9
A whole series of complementary studies have been performed on the same, single nanowire containing a quantum dot: cathodoluminescence spectroscopy and imaging, micro-photoluminesc…