title: Phase retrieval using spatially modulated illumination.
abstract: In this Letter, we propose a method for retrieving the phase of a wavefront from the diffraction patterns recorded when the object is sequentially illuminated by spatially modulated light. For wavefronts having a smooth phase, the retrieval is achieved by using a deterministic method. When the phase has discontinuities, an iterative process is used for the retrieval and enhancement of the spatial resolution. Both the deterministic and iterative phase reconstructions are demonstrated by experiments.
authors: Peng
authors: P
authors: Gao
authors: Giancarlo
authors: G
authors: Pedrini
authors: Chao
authors: C
authors: Zuo
authors: Wolfgang
authors: W
authors: Osten
mesh_terms: D000818:Animals; D009033:Culicidae / Q000033:anatomy & histology; D007089:Image Enhancement / Q000379:methods; D007668:Kidney / Q000033:anatomy & histology; D008029:Lighting / Q000379:methods* / Q000706:statistics & numerical data; D051379:Mice; D061848:Optical Imaging / Q000379:methods* / Q000706:statistics & numerical data; D055620:Optical Phenomena; D014921:Wings, Animal / Q000033:anatomy & histology