Evidence map›Paper›PMID 41271687›Full record

ArticleNature communications2025

Widely tunable and narrow-linewidth violet lasers enabled by UV-transparent materials.

C A A Franken, W A P M Hendriks, L V Winkler, A R do Nascimento, A van Rees, M Dijkstra, S Mardani, D Kienzler, R Dekker, J van Kerkhof and 3 more

Abstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Nature communications, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing 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

1 citing paper in PubMed.

  1. 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

13 authors.

C A A FrankenLaser Physics and Nonlinear Optics, Department of Science and Technology, MESA+ Institute of Nanotechnology, University of Twente, Enschede, The Netherlands. c.a.a.franken@utwente.nl.ORCID http://orcid.org/0000-0003-1847-0812
W A P M HendriksIntegrated Optical Systems, Department of Science and Technology, MESA+ Institute of Nanotechnology, University of Twente, Enschede, The Netherlands.
L V WinklerLaser Physics and Nonlinear Optics, Department of Science and Technology, MESA+ Institute of Nanotechnology, University of Twente, Enschede, The Netherlands.ORCID http://orcid.org/0009-0007-2669-8223
A R do NascimentoPHIX B.V., Enschede, The Netherlands.ORCID http://orcid.org/0009-0007-7645-7022
A van ReesLaser Physics and Nonlinear Optics, Department of Science and Technology, MESA+ Institute of Nanotechnology, University of Twente, Enschede, The Netherlands.ORCID http://orcid.org/0000-0002-8862-5413
M DijkstraIntegrated Optical Systems, Department of Science and Technology, MESA+ Institute of Nanotechnology, University of Twente, Enschede, The Netherlands.
S MardaniIntegrated Optical Systems, Department of Science and Technology, MESA+ Institute of Nanotechnology, University of Twente, Enschede, The Netherlands.
D KienzlerDepartment of Physics, ETH Zurich, Zurich, Switzerland.
R DekkerLioniX International B.V., Enschede, The Netherlands.
J van KerkhofPHIX B.V., Enschede, The Netherlands.
P J M van der SlotLaser Physics and Nonlinear Optics, Department of Science and Technology, MESA+ Institute of Nanotechnology, University of Twente, Enschede, The Netherlands.ORCID http://orcid.org/0000-0001-7473-1752
S M García-BlancoIntegrated Optical Systems, Department of Science and Technology, MESA+ Institute of Nanotechnology, University of Twente, Enschede, The Netherlands.
K-J BollerLaser Physics and Nonlinear Optics, Department of Science and Technology, MESA+ Institute of Nanotechnology, University of Twente, Enschede, The Netherlands.ORCID http://orcid.org/0000-0001-6628-610X

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Embedding multi-wavelength lasers in photonic waveguide circuits is of interest for next-generation ion traps, such as for miniaturizing optical clocks or upscaling ion-based quantum computing. Critically, this path involves photonic integration of highly coherent lasers in the ultraviolet (UV) range, which is presently obstructed by the transparency limit of materials used in established integrated waveguides. Here, we demonstrate the first integrated, extended cavity diode laser based solely on UV-transparent materials. We integrate aluminum oxide waveguide circuits with gallium nitride amplifiers to generate milliwatt-level on-chip output power near the ultraviolet range. The extended cavity approach allows for wide wavelength coverage and precise frequency control, which is demonstrated by tuning mode-hop-free to a Sr-transition frequency. Due to the inherent stability of photonic circuits and UV-compatible integration, the intrinsic laser linewidth reaches a record-low value around 300 kHz with better than 43-dB side-mode suppression. These results announce the viability of a novel class of integrated lasers that opens access to the UV.

Identifiers

PMID41271687
PMCPMC12638939

What OpenQuestion holds

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LicenceCC BY
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Registered trials

None linked

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.