New quasi-particle bridges microwave and optical domains

https://phys.org/news/2023-09-quasi-particle-bridges-microwave-optical-domains.html

"mixing confined quantum fluids of light and GHz sound leads to phonoriton: part photon, phonon and semiconductor exciton... coherently convert information between optical and microwave... energy splitting between 2 light fluids precisely tuned controlling densities using laser... control the device with microwaves and inject 7 GHz phonons into trap... bidirectional microwave-to-optical conversion... interaction scales with both polariton and phonon populations... photonics, optomechanics and optical communication"

Related: Phonon engineering for extended lasing beyond the fluorescence spectrum
https://phys.org/news/2023-10-phonon-lasing-fluorescence-spectrum.html