Domaines
Quantum optics/Atomic physics/Laser
Condensed matter
Low dimension physics
Nonequilibrium statistical physics
Quantum information theory and quantum technologies
Quantum optics
Non-linear optics
Non-equilibrium Statistical Physics
Quantum gases
Nanophysics, nanophotonics, 2D materials and van der Waals heterostructures,, surface physicss, new electronic states of matter
Type of internship
Expérimental et théorique Description
The internship aims to study photon Bose-Einstein condensation (BEC), a phenomenon in which an active medium mediates the interaction between photonic modes in order to thermalize their population, and generate a condensed fraction. This phenomenon is out-of-equilibrium: an optical pump continuously generates excitations to compensate for the losses. The photon condensates studied to date are 2D systems. The project implements a 1D system by using electromagnetic modes which are guided at the interface between a dielectric and a metal, surface plasmons. By confining these modes within a plasmonic Fabry–Perot cavity, one obtains paraxial modes in one dimension, in which fluctuations and interactions become particularly important due to the reduced dimensionality. The internship project aims to study the mechanisms by which thermalization and condensation occur within this system, and will involve an experimental study of the gas's thermodynamic properties and spatial correlations.
Contact
Marin Tharrault