Welcome

Our group is involved in the characterization of nano-objects and in developing experimental methods for the detection  and characterization of individual nano-objects.

  • Super resolution microscopy for the observation and chemical characterization of nano-objects and nanostructures. Special emphasis is made on label-free methods, avoiding the labeling of the objects with fluorescent dyes. The methods are well tailored for nano-material research. We are making use of photo-induces thermal profiling to enhance resolution. The improvement of resolution stems from the nonlinear response of the reflectivity.

  • Development of methods to measure light absorption and light extinction in individual nano-objects and nanoparticles. A major goal in using this methods is the the search for direct band gap photovoltaic materials. For instance, finding Ge/Si core multi-shells nanowires with enhanced photovoltaic yields in the infrared.