采用Gerchberg-Saxton(G-S)的迭代算法,在物域和频域之间进行多次迭代,使频谱的振幅大致为常数,并对频谱的位相进行量化,用二元光学技术制成了8台阶反射式相息图(kino-form),再现时获得了清晰的像,衍射效率较高。

We adopt the Gerchberg Saxton iterative algorithm, while keeping the amplitude of frequency spectrum approximately constant, the phase of the spectrum is quantified into 2 nlevel. Then by using binary optical technique, 8 phase level Kinoform is fabricated. Clear construction images are obtained high reflection efficiency.