Fig. 3: Optomechanical strong coupling.
From: High photon-phonon pair generation rate in a two-dimensional optomechanical crystal
a Measurement of optomechanically induced transparency (OMIT) as a function of laser detuning Δ. The avoided crossing at \({\Omega }_{{{{\rm{mod}}}}}\approx -{\omega }_{{{{\rm{m}}}}}\) results from the strong coupling between the optical and mechanical mode of the OMC. b Line-cut of (a) at Δ = −ωm. From the splitting, we infer that we are in the strong-coupling regime (g/π = 508 MHz > κ/4π). The strong pump field makes additional weakly coupled mechanical modes visible.
