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This work introduces a methodology for designing high-performance Fresnel surfaces in imaging systems, suggesting improvements in size and efficiency.
Phase elements can enhance the performance of imaging systems while reducing their size, by adding continuous phase gradients on top of the geometrical surface. Compared to their typical implementation as diffractive elements, Fresnel optics can achieve similar performance, while maintaining broadband functionality. This work introduces a methodology to optimize such Fresnel surfaces, resulting in high-performance, compact imaging designs.
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Cerpentier et al. (2025) studied this question.
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