Light-matter coupling
Light-matter coupling is a rapidly growing field encompassing all coupling between photonic modes and excitation modes of matter. In solid-state cavities, the light-matter interaction can be used to modify the nature of elementary excitations of matter via the formation of hybrid excitations of light and matter generically called polaritons [1]. Such an interaction is actively investigated in many areas such as in surface-plasmon resonators [2], excitonic transitions in semiconductors [3], metamaterials [4] and superconducting layers [5].
In our group we are looking at strong and ultrastrong light-matter coupling effects in solids both from a theoretical and an experimental perspective. In particular we are studying these effects in complex oxide cavities where there may be the possibility to induce changes in some macroscopic properties.
[1]. C. Weisbuch et al, Phys. Rev. Lett. 69, (1992)
[2]. J. Bellessa et al, Phys. Rev. Lett. 93, (2004)
[3]. K. Hennessy et al, Nature 445, (2007)
Main researchers
Lukas Korosec, Giacomo Mazza
Our publication on this topic
Y. Laplace et al.
Physical Review B 93, 075152 (2016)
I. Amelio et al. Phys. Rev. B 104, 235120 – Published 9 December 2021