To content
Department of Physics

Tailored Subcycle Nonlinearities of Ultrastrong Light-Matter Coupling

Antenna structure with incoming wave © Christoph Lange​/​TU Dortmund

Together with the groups of Rupert Huber, Dominique Bougeard (University of Regensburg), and Cristiano Ciuti (Université de Paris), we explored a novel regime of light-matter interaction, where both the Rabi frequency induced by a coherent driving field and the vacuum Rabi frequency set by a cavity vacuum field are comparable to the carrier frequency of light. The resulting subcycle nonlinearities may facilitate novel nonclassical light sources, quantum phase transitions, or cavity chemistry with virtual photons.

The results have been published in Physical Review Letters.