Optimization design of binary optics elements based on ant colony algorithm

A method to design the BOE by ant colony optimization algorithm is presented to increase the speed of optimization for the BOE and to improve its diffraction efficiency. The digraph diagram of optimization design for a BOE (rectangular aperture multi-level phase-modulated grating) using ant colony optimization algorithm was structured. The structured result was simulated by Matlab. It shows that the run time is reduced and the diffraction efficiency is improved with this algorithm.