Description: Our activities concern semiconductor quantum dots in the far infrared (absorption, non-linear emission, dynamics, relaxation, decoherene, photothermal photoacoustic AFM nanospectroscopy) and photonic crystals and tensile strained Germanium laser, silicon photonics, nitride nanophotonics, diamond photonic plateform, 3D simulation of Maxwell and Schrodinger k.p equations.
infrared (560) afm (104) raman (41) silicon photonics (8) photoacoustic (3) semiconductor single quantum dot photonic crystal germanium laser photothermal intersublevel
The Quantum Dot and Photonic Nanostructures group (QD for short) is a research group in the department of " Photonics " of Centre for Nanoscience and Nanotechnology .
↓ Highlight January 2022: First Room temperature GeSn laser published in Optics Express pdf ↓ ( click the picture to open )
A large large part of the activity of the group focuses on photonic crystals which are designed, modeled, measured and fabricated by the team in the clean room facility of the Centre. We study in particular the enhancement of non-linear interactions in photonic crystal nanocavities made of silicon, diamond, germanium or nitride materials: Second harmonic generation, frequency tripling, Raman emission, auto-oscillations, two-photon absorption photodetection, biosensing etc. We also investigate light emission