Photographic method for the fabrication of surface-relief diffractive optical elements

摘要

Abstract: A photographic method using silver halide emulsions as photoresist medium has been used for the fabrication of relief blazed diffractive elements. The fabrication method comprises the design of half tone masks in the computer and the recording of a reduced image of the mask on the emulsion. After development a thin film of aluminum is laid over the emulsion to obtain a high reflective zone plate. !6