A MEMS-based programmable diffraction grating for optical holography in the spectral domain

Abstract

Summary form only given. Spatial holography stores the shape of an object by recording the phase profile of a monochromatic optical beam. Similarly, the spectral content of an optical beam can be recreated from a stored phase profile of a polychromatic optical beam. Such phase profiles have been created by etching silicon and also with a MEMS-based programmable, diffraction grating. This talk will describe how phase profiles are create to reproduce specific spectral profiles, the development of the programmable diffraction grating, and several potential applications of such a technology.