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## Abstract This study focuses on the Optomechanical bichromatic wavelength switching system as an indirect two-color up-conversion process that relies on optical force and nanorod scattering effects. This system is used to control light coupling between four parallel optical waveguides made of silicon nitride (Si~3~N~4~) which form two identical parts. The parallel waveguides with 0.5 μm × 0.5 μm cross-section and 220 μm lengths suspended on a silica (SiO~2~) substrate embedded with the array of square silicon (Si) nanorods. By mid-IR plane wave illumination, as control light, with different intensities and different wavelengths on nanorods, scattering would increase and result in an improvement in attractive gradient optical force exerted on waveguides. Via bending waveguides toward each other, caused by optical gradient force, two different visible lights, as probe signals, propagating in the first waveguide of each section would couple to the adjacent waveguide. Simulation results reveal that when the distance between the parallel waveguides in the equilibrium position is 100 nm and the intensity of mid-IR light is 1.28 mW/μm^2^ total coupling would occur in two situations: 1-

Author

Fanid, Ali Taghizad (author);Rostami, Ali (author)

Publisher

Research Square Platform LLC

Published

2022

Language

EN