Researchers create first supermode optical resonator

https://phys.org/news/2023-02-supermode-optical-resonator.html

"optics, lasers, microscopy, sensing, telecommunications... not only control intensity and frequency of light, but now also mode of light, which determines the shape and manner in which photons flow... Also enables multi-mode coupled light... etching new type of pattern, 300-600 nm in size, on surface of reflectors at each end of silicon-on-insulator integrated photonics platform... Combining more than one mode of light creates supermode, breaking symmetry inside resonator... huge impact on bandwidth"