Directed self-assembly of quantum dots (QDs) is a method to overcome the intrinsic limitations of self-assembled QDs.

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 A superconductor-2DEG hybrid systems is shown below: (a) Device defined on a consisting of an InAs 2DEG T-shaped island (yellow) interrupting a Nb superconducting loop (Appl. Phys. Lett. 104, 242604 (2014)).

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The figure shows an example of a quantum device: a) Schematic representation of a GaAs/AlGaAs quantum ring with flux through the center …

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Such structures can find applications both in fundamental studies of parametric light amplification and condensation phenomena in electronic systems, and in ultrafast devices for next-generation optical information technology at unprecedented bit rates .

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We are developing next-generation photon beam detectors for Synchrotron Radiation and Free Electron Lasers. Two research lines are being explored. In0.75Ga0.25As-based pixelated detectors allow fast and efficient beam position monitoring (top image).

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