We propose a kind of wavefront sensing technique by means of binary intensity modulation. A digital micromirror device operates as a binary intensity modulator and a pinhole works as a binary-aberration-mode filter. Through modulating intensity distribution of incident light, light emitting from the pinhole is capable of containing information on binary aberration coefficients. With the amount of light acquired by a single detector, the coefficients of binary aberration modes for reconstructing incident wavefront can be calculated. Differing from the conventional wavefront sensing technique, this method turns the complex two-dimensional wavefront sensing into simple total-light-intensity detection. The simulation experiment has validated the feasibility of the theoretical model. (C) 2014 Optical Society of America
1.Chinese Acad Sci, Inst Opt & Elect, Chengdu 610209, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100039, Peoples R China 3.Univ Elect Sci & Technol China, Sch Optoelect Informat, Chengdu 610054, Peoples R China
Wang, Shuai,Yang, Ping,Ao, Mingwu,et al. Wavefront sensing by means of binary intensity modulation[J]. APPLIED OPTICS,2014,53(35):8342-8349.