21 December 2001 Interleaved diffractive optical element design
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In this paper we present a design method for meso-scale diffractive optical elements (DOEs). We briefly review the purpose and functionality of DOEs in general and describe our technique for designing on-axis as the basis for more elaborate devices, namely beam splitters. We explore two alternative approaches to beam splitter design and their respective issues. We discuss the limitations of our design method, in both fundamental and practical terms, and present solutions for those problems. We employ electromagnetic modeling techniques to simulate the performance of our devices and we present quantitative results as well as qualitative comparisons of our designs. Finally, we discuss an optimization algorithm for improving DOE performance aimed specifically at achieving beam splitters that are robust to misalignment and nonuniform illumination.
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Marion R. LeCompte, Shouyuan Shi, Dennis W. Prather, "Interleaved diffractive optical element design", Proc. SPIE 4436, Wave-Optical Systems Engineering, (21 December 2001); doi: 10.1117/12.451290; https://doi.org/10.1117/12.451290

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