Quantum walk classical simulation with slot waveguide array for sensing

摘要

A quantum walk (QW) classical simulation with a slot waveguide array is first proposed for sensing. The waveguide array is designed on a silicon-on-insulator, with the electric field mainly confined in the cladding region to enhance the interaction between the light and medium. The intensity distribution, i.e. the possibilities of QW, at the end of the array changes with the refractive index of the sensing area (surrounding region). Simulation results show good sensing characteristics with compact footprint and refractive index resolution of 1E-11 RIU.