Kimon Moratis
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View article: Collecting single photons from a cavity-coupled quantum dot using an adiabatic tapered fiber
Collecting single photons from a cavity-coupled quantum dot using an adiabatic tapered fiber Open
We demonstrate efficient in-plane optical fiber collection of single photon emission from quantum dots embedded in photonic crystal cavities. This was achieved via adiabatic coupling between a tapered optical fiber and a tapered on-chip ph…
View article: Light hole states in a strained quantum dot: Numerical calculation and phenomenological models
Light hole states in a strained quantum dot: Numerical calculation and phenomenological models Open
Starting from the numerical solution of the 6-band \\textbf{k.p} description\nof a lattice-mismatched ellipsoidal quantum dot situated inside a nanowire,\nincluding a spin Zeeman effect with values appropriate to a dilute magnetic\nsemicon…
View article: Light hole ground state in anisotropic nanowire - quantum dots : numerical calculations and magneto-optical spectroscopy
Light hole ground state in anisotropic nanowire - quantum dots : numerical calculations and magneto-optical spectroscopy Open
The effect of strain and confinement was studied extensively by theory on nanowire quantum dots similar to those we studied with optical measurements. More specifically we investigated the hole ground state properties of both compressive C…
View article: Probing the light hole/heavy hole switching with correlated magneto-optical spectroscopy and chemical analysis 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 Open
A whole series of complementary studies have been performed on the same single nanowire containing a quantum dot: cathodoluminescence spectroscopy and imaging, micro-photoluminescence spectroscopy under magnetic field and as a function of …
View article: 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
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 Open
A whole series of complementary studies have been performed on the same, single nanowire containing a quantum dot: cathodoluminescence spectroscopy and imaging, micro-photoluminescence spectroscopy under magnetic field and as a function of…
View article: Nanowire growth and sublimation: CdTe quantum dots in ZnTe nanowires
Nanowire growth and sublimation: CdTe quantum dots in ZnTe nanowires Open
The role of the sublimation of the compound and of the evaporation of the constituents from the gold nanoparticle during the growth of semiconductor nanowires is exemplified with CdTe-ZnTe heterostructures. Operating close to the upper tem…
View article: Strained GaAs/InGaAs Core-Shell Nanowires for Photovoltaic Applications
Strained GaAs/InGaAs Core-Shell Nanowires for Photovoltaic Applications Open
We report on the successful growth of strained core-shell GaAs/InGaAs nanowires on Si (111) substrates by molecular beam epitaxy. The as-grown nanowires have a density in the order of 108 cmâ2, length between 3 and 3.5 μm, and diamete…