Fig. 1: Optomechanical ring resonator (OMR) with co-resonating photon and phonon modes.
From: Optomechanical ring resonator for efficient microwave-optical frequency conversion
a Schematic illustration of the optomechanical integrated circuit (OMIC) device, which consists of photonic and phononic waveguides coupled with an OMR. b The photonic dispersion curve of the OMR waveguide, which supports TE0 (red) and TE2 (orange) modes. The counter-propagating TE0 (\({\omega }_{0}\)) photonic mode and the L2 (\(\Omega\)) phononic mode (blue arrow) are phase-matched to generate the TE2 (\({\omega }_{2}={\omega }_{0}+\Omega\)) mode through the anti-Stokes scattering process. The red, yellow, and blue arrows represent the TE0, TE2 and the L2 mode traveling directions inside the OMR. c The phononic dispersion of the OMR waveguide. The L2 mode is denoted as the solid blue line. d The cross-sectional mode profiles of the TE0, TE2, and the L2 modes. The color bar of the L2 mode represents the y-component displacement field. The color bar of the TE0 mode represents the x-component of the electric field.
