AI Article Synopsis

  • The study presents a self-assembly technique to create dielectric microsphere arrays that can be precisely positioned and offer advanced imaging capabilities.
  • These arrays provide characteristics like wide viewing angles, high-speed performance, and superresolution levels of λ/6.4.
  • The findings reveal that existing theories fall short in explaining the microspheres' unique imaging properties, particularly regarding superresolution, immersion effects, and size-dependent magnification, indicating the need for new theoretical frameworks.

Article Abstract

We employ a self-assembly method to fabricate dielectric microsphere arrays that can be transferred to any desired positions. The arrays not only enable far-field, broad-band, high-speed, large-area, and wide-angle field of views but also achieve superresolution reaching λ/6.4. We also find that many proposed theories are insufficient to explain the imaging properties; including the achieved superresolution, effects of immersion, and unusual size-dependent magnification. The half-immersed microspheres certainly do not behave like any ordinary solid immersion lenses and new mechanisms must be incorporated to explain their unusual imaging properties.

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http://dx.doi.org/10.1364/OE.24.016479DOI Listing

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