ArticleSmall (Weinheim an der Bergstrasse, Germany)2025
High-Purity Single Photon Extraction from Diamond Nitrogen-Vacancy Centers in Low-Numerical-Aperture Optical Systems via Defect-Selective Metalens Printing.
Article in Small (Weinheim an der Bergstrasse, Germany), 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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.
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.
Who cites it
2 citing papers in PubMed.
- Spin-photon qubits for scalable quantum network.Light, science & applications · 2026Review
- High-Purity Single Photon Extraction from Diamond Nitrogen-Vacancy Centers in Low-Numerical-Aperture Optical Systems via Defect-Selective Metalens Printing.Small (Weinheim an der Bergstrasse, Germany) · 2025Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
10 authors.
Funding
Abstract
Solid-state quantum emitters, such as nitrogen-vacancy (NV) centers in diamond, offer a promising route toward scalable quantum technologies. However, their random spatial distribution and inherently broad dipole emission severely hinder high-purity single-photon extraction-particularly in low-numerical-aperture (NA) optical systems, which are essential for compact and scalable quantum photonic systems. Here, a defect-selective metalens integration approach is presented that allows precise and efficient single photon collection from individual NV centers, even under ultra-low-NA optical systems. Using an in situ transfer-printing process, high-purity silicon dioxide metalenses are stamped precisely and deterministically onto selected NV centers located 25 µm below the diamond surface. This integration reshapes the broad dipolar emission of the targeted NV center into a tightly collimated, low-divergence beam, achieving a 40-fold enhancement in photon collection efficiency with an objective lens of NA = 0.07. Notably, emission is detected exclusively from metalens-coupled NV centers, effectively filtering out background noise from neighboring defects. Second-order correlation measurements yield g⁽
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
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.