Publications by Valentina Troncale

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Semiconductor quantum dots are usually compared to artificial atoms, because their electronic structure consists of discrete energy levels as for natural atoms. These artificial systems are integrated in solid materials and can be localized with a spatial ...

High symmetry epitaxial quantum dots (QDs) with three or more symmetry planes provide a very promising route for the generation of entangled photons for quantum information applications. The great challenge to fabricate nanoscopic high symmetry QDs is furt ...

We present results on the polarization-resolved photoluminescence emitted from InGaAs/AlGaAs single quantum dots (QDs) grown in inverted tetrahedral pyramids. The emitted light was detected for two mutually perpendicular linear polarization directions in t ...

The engineering of the three-dimensional (3D) heterostructure potential in GaAs/AlGaAs pyramidal quantum dot-in-dots (DiDs) provides control over the valence band symmetry and hence on the polarization of the emitted photons. We propose a technique for dyn ...

The authors present a polarization-resolved photoluminescence study of single semiconductor quantum dots (QDs) interconnected to quantum wires, measured both in a top geometry, and in a less conventional cleaved-edge geometry. Strong polarization anisotrop ...

Valentina Troncale

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Tailored-Potential Pyramidal Quantum Dot Heterostructures

Spectral signatures of high-symmetry quantum dots and effects of symmetry breaking

Excited excitonic states observed in semiconductor quantum dots using polarization resolved optical spectroscopy

Dynamic switching of hole character and single photon polarization using the quantum confined Stark effect in quantum dot-in-dot structures

Optical polarization anisotropy and hole states in pyramidal quantum dots

Control of valence band states in pyramidal quantum dot-in-dot semiconductor heterostructures