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<p>A new strategy has been presented to overcome the long-term dilemma of simultaneously achieving high numerical aperture, large aperture size, and broadband achromatism of flat lenses. A stepwise phase dispersion compensation (SPDC) layer is introduced as a substrate on which the meta-atoms are positioned.</p>

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High-performance achromatic flat lens with high NA

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年8月27日

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  • Yifeng Shao,
  • Paul Urbach

摘要

A new strategy has been presented to overcome the long-term dilemma of simultaneously achieving high numerical aperture, large aperture size, and broadband achromatism of flat lenses. A stepwise phase dispersion compensation (SPDC) layer is introduced as a substrate on which the meta-atoms are positioned.