Institut des Sciences Moléculaires d'Orsay



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Home > Research Teams > Nanophysics@Surfaces (Nanophys) > Research > Scanning Probe Nano-optics

Scanning Probe Nano-optics

The study of nano-optics involves the ability to confine and manipulate light at the nanoscale, despite the well-known “diffraction limit”.

The specificity of our group is that we use inelastic tunneling electrons to locally and electrically excite surface plasmon polaritons or excitons in nano-objects and theoretically include quantum effects in the modeling of such systems. The tunneling junction giving rise to the excitation is most often the one found between the tip of a scanning tunneling microscope (STM) tip and the sample, but may also be the integrated nano-junction of a device. In particular we focus on plasmonic and excitonic systems, but we also contribute experimentally and theoretically to the development of STM-induced luminescence spectroscopy of individual molecules (in an STM at low temperature under ultra-high vacuum).

Follow the Scanning probe plasmonics link to learn about our activities using the inelastic tunneling current from an STM (scanning tunneling microscope) to excite surface plasmons.

Follow the Excitonics link to learn about our activities involving the electroluminescence of two dimensional semiconductors (transition metal dichalcogenides or TMDs).

A brief description of our theoretical activities in Nano-optics may be found by following the Nanophotonics, nanoplasmonics and Theory of laser-matter interactions at flat surfaces links.