3C-SiC nanobeam optomechanical crystals

We report the first demonstration of high-quality (Q
_i
~ 2.8-3.2×10
³
)3C silicon carbide photonic crystal nanobeams. With the strong optomechanical coupling (g
_OM
/2π ~ 100 GHz/nm), we observed clear optical transduction of the thermal mechanical motion of the coupled nanobeams.