Application of optical diffraction method in designing phase plates

Lei Ze-Min^{1, 2}, Sun Xiao-Yan^{1, 2}, Lv Feng-Nian¹, Zhang Zhen¹, Lu Xing-Qiang^{1, †,}

(a) Continuous phase plate calculated by the diffraction method; (b) one-dimensional distributions of CPP along x and y axes.