Experiments of diffractive phase elements capable of realizing desired functions in rotationally symmetric optical system

摘要

We report for the first time the experimental results for special diffractive phase elements (DPE's) capable of implementing the desired functions in rotationally symmetric optical system. Experiments demonstrate that the fabricated DPE's can satisfactorily realize the combined functions, for instance, demultiplex different wavelength components and focus each component at a present position simultaneously, produce tricolor annuli, and generate dual-chromatic point/ring pattern. The experimental results are in good agreement with those of the theoretical designs.