ArticleNature communications2023
An entropy-controlled objective chip for reflective confocal microscopy with subdiffraction-limit resolution.
Article in Nature communications, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed.
- Planar Super-Oscillation Diffractive Lenses: Practical Developments and Applications.Nanophotonics (Berlin, Germany) · 2026Review
- De-coherent parallel laser processing of ultradense nanopores for high-density, large-area 3D optical phase encoding.Nature communications · 2026Article
- Optical Fresnel zone plate flat lenses made entirely of colored photoresist through an i-line stepper.Light, science & applications · 2025Article
- High-order diffraction for optical superfocusing.Nature communications · 2024Article
- An entropy-controlled objective chip for reflective confocal microscopy with subdiffraction-limit resolution.Nature communications · 2023Article
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Authors and funding
6 authors.
Funding
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Abstract
Planar diffractive lenses (PDLs) with optimized but disordered structures can focus light beyond the diffraction limit. However, these disordered structures have inevitably destroyed wide-field imaging capability, limiting their applications in microscopy. Here, we introduce information entropy S to evaluate the disorder of an objective chip by using the probability of its structural deviation from standard Fresnel zone plates. Inspired by the theory of entropy change, we predict an equilibrium point [Formula: see text] to balance wide-field imaging (theoretically evaluated by the Strehl ratio) and subdiffraction-limit focusing. To verify this, a [Formula: see text] objective chip with a record-long focal length of 1 mm is designed with [Formula: see text], which is the nearest to the equilibrium point among all reported PDLs. Consequently, our fabricated chip can focus light with subdiffraction-limit size of 0.44 λ and image fine details with spatial frequencies up to 4000 lp/mm experimentally. These unprecedented performances enable ultracompact reflective confocal microscopy for superresolution imaging.
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Registered trials
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