Abstract

We present a new technique for the design of diffractive optical elements (DOE’s) that is based on previous nonlinear least squares (NLS) and phase-shifting quantization methods [Appl. Opt. 36, 7297–7306 (1997)]. The technique uses a memory-matrix-based identification (MMBI) optimization procedure. We compare results from the MMBI method with those from iterative Fourier transform and NLS methods. In comparison, the MMBI DOE designs produce better-quality reconstructions for DOE’s with eight or more fabrication phase levels and generally have a higher signal-to-noise ratio and better uniformity.

© 2000 Optical Society of America

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