Back at it again with the microdisks: Xin He, Glen Harris, Chris Baker, Andreas Sawadsky, Yasmine Sfendla, Yauhen Sachkou, Stefan Forstner and Warwick Bowen strongly coupled photons to counterpropagating photons, via waves in superfluid helium. We try to keep our research as low-threshold as our Brillouin laser, so the full article in Nature Physics is available here:

