Michel Orrit will present several optical methods giving access to signals from single molecules and single gold nanoparticles. Single gold nanoparticles are interesting because of their strong interaction with light mediated by their plasmon resonance, and because they are chemically and photochemically very stable. The experiments are based on fluorescence or photoluminescence, scattering, absorption detected by photothermal contrast, purely refractive effects leading to shifts of the plasmon resonance, or plasmon-enhanced fluorescence of weak emitters. Some chosen results will demonstrate the power of these experiments to explore the nanoworld in a non-invasive way.

Programme

19:30 lecture hall open
19:45 lecture
20:30 break
20:45 continuation of the lecture
21:15 End