All-optical nonlinear phase modulation in open semiconductor microcavities
Authors
Fedor A. Benimetskiy
Paul M. Walker
Anthony Ellul
Oleksandr Kyriienko
Martina Morassi
Aristide Lemaître
Tommi Isoniemi
Maurice S. Skolnick
Jacqueline Bloch
Sylvain Ravets
Dmitry N. Krizhanovskii
Abstract
We report a significant advancement in ultra low power light-by-light phase modulation using open semiconductor microcavities in the strong light-matter coupling regime. We achieve cross-phase modulation of up to 247$\pm$17 mrad per particle between laser beams attenuated to single-photon average intensities. This breakthrough extends the potential for quantum information processing and nonlinear quantum optics in strongly coupled light-matter systems, setting a new benchmark in the field without relying on atom-like emitters. Our findings suggest promising new avenues for scalable quantum optical technologies.
