Rapid measurement of transmission matrix with the sequential semi-definite programming method*

Project supported by the National Key Research and Development Program of China (Grant No. 2017YFB1104500), the Natural Science Foundation of Beijing (Grant No. 7182091), and the National Natural Science Foundation of China (Grant No. 21627813).

Zhang Zhenfeng, Zhang Bin, Feng Qi, He Huimei, Ding Yingchun
       

(color online) (a) Demonstration of a superpixel composed of 4 × 4 DMD mirrors which divide 2π into 16 parts. (b) The contribution of each individual mirror is located on a circle in the complex plane. (c) A DMD pattern consisting of 9 × 9 segments with random phase and one segment is composed of many identical superpixels.