Characterization of Light Diffraction by a Digital Micromirror Device

Abstract A Digital Micromirror Device (DMD) is a technology developed by Texas Instruments, that consists in two-dimensional array of micromirrors, which can be individually tilted between two positions. It has been used as digital video and image processing solution, commonly found Light Processing (DLP) projectors. Over the years, DMDs have become popular different fields: industrial, automotive, medical, government home user solutions. In astronomy field, it also considered on-ground space instrumentation proposed for development some astrophysical instruments. order to evaluate actual impact such device instrument optical design, important know how light behaves when interacts with DMD, namely what regards diffraction process beam reflected periodic micromirrors. this study we describe simulate patterns produced coherent incoherent sources light. The results from simulations are verified against laboratory experiments, described study.