NANOSPECTROSCOPY
We are a young, multi-disciplinary and diverse group working in the field of advanced optical spectroscopy on nanostructured materials. The group is composed by one Professor (Marta De Luca), two post docs, four PhD students, some master students and visiting scientists. We created our lab in 2023, with state of the art facilities.
In our vision the nanostructures are scaffolds embedding smaller quantum structures (quantum dots, point defects that emit single photons, quantum rings, quantum wells, etc.) with diverse dimensionalities (0D, 1D, and 2D). We work in close collaboration with several growth laboratories providing nanostructures, and we functionalize them by several methods, such as hydrogen or helium irradiation, laser heating, thermal annealing, nanoscale patterning etc. to achieve the desired properties, such as quantum light emisison, efficient nanowire waveguiding, nanolasing, solar light absorption, topological effects.
The lab includes two vibrations-free optical tables, room temperature and cryogenic (closed-cycle cryo-free cryostat) PL and Raman setups with positioning accuracy of 50 nm. We apply optical techniques under different experimental conditions (varying excitation power density, sample temperature, light polarization, magnetic fields) and can perform spatially-resolved measurements at the nanoscale. We have three extra narrow-band continuous wave lasers and one pulsed light source with tunable wavelength (450-1100 nm) and tunable repetition rate. We have spectrometers and detectors to detect signal from 450 nm to 2100 nm. We have a unique capability to manipulate single nanostrctures using micro-needles controlled by piezomotors.
More information can be found at Home | Nanospectroscopy Lab
Responsabile del Gruppo
Marta De Luca
