Evidence map›Paper›PMID 40307416›Full record

ArticleNature nanotechnology2025

Single-layer waveguide displays using achromatic metagratings for full-colour augmented reality.

Seokil Moon, Seokwoo Kim, Joohoon Kim, Chang-Kun Lee, Junsuk Rho

Abstract read
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Article in Nature nanotechnology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

20 citing papers in PubMed.

  1. Article
  2. Review
  3. Article
  4. Augmented reality coming into focus.Nature nanotechnology · 2026
    Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Compound Meta-Optics for Advanced Optical Engineering.Sensors (Basel, Switzerland) · 2026
    Review
  13. Review
  14. Article
  15. Tunable BIC metamaterials with Dirac semimetals.Nanophotonics (Berlin, Germany) · 2025
    Review
  16. Article
  17. Review
  18. Article
  19. Article
  20. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors.

Seokil Moon *Samsung Research, Samsung Electronics, Seoul, Republic of Korea.
Seokwoo Kim *Department of Mechanical Engineering, Pohang University of Science and Technology (POSTECH), Pohang, Republic of Korea.ORCID http://orcid.org/0000-0001-5076-148X
Joohoon Kim *Department of Mechanical Engineering, Pohang University of Science and Technology (POSTECH), Pohang, Republic of Korea.ORCID http://orcid.org/0000-0002-0827-1919
Chang-Kun LeeSamsung Research, Samsung Electronics, Seoul, Republic of Korea.
Junsuk RhoDepartment of Mechanical Engineering, Pohang University of Science and Technology (POSTECH), Pohang, Republic of Korea. jsrho@postech.ac.kr.ORCID http://orcid.org/0000-0002-2179-2890

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

An ideal waveguide display for augmented reality would feature a single-layer waveguide substrate combined with dispersion-free couplers. While metasurfaces have been explored as a potential solution for waveguide displays, severe limitations-such as low efficiency, poor uniformity and chromatic aberration-remain unresolved. Here we introduce a single-layer waveguide display using achromatic metagratings. The proposed metagratings comprise periodic arrays of rectangular nanostructures, diffracting red, green and blue lights in the same direction. Therefore, they ensure an achromatic propagation angle within the single waveguide substrate maintaining high-quality projected images. As a proof of concept, we demonstrate a full-colour augmented reality waveguide display with a 500-μm-thick single-layer waveguide substrate that substantially reduces the device form factor and weight while enhancing brightness and colour uniformity with a sufficient eyebox. This approach overcomes the limitations of traditional augmented reality near-eye optical designs, which rely on multi-layer grating couplers that require complex fabrication processes and are too heavy for ergonomic head-mounted applications.

Identifiers

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.