Evidence map›Paper›PMID 42686847›Full record

ArticleNature nanotechnology2026

Quantum-well metasurface for free-space-accessible enhanced nonlinear polarization.

Pernille Undrum Fathi, Irene Occhiodori, Patrick Devaney, Amberly Ricks, Rithvik Ramesh, Yiwei Ju, Moaz Waqar, Theodore P Letsou, Christina M Spägele, Hyunseung Jung and 5 more

Abstract read
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Article in Nature nanotechnology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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

15 authors.

Pernille Undrum FathiHarvard John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, USA. pernillefathi@g.harvard.edu.ORCID http://orcid.org/0000-0003-1021-5059
Irene OcchiodoriHarvard John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, USA.
Patrick DevaneyMicroelectronics Research Center and Electrical and Computer Engineering Department, University of Texas at Austin, Austin, TX, USA.ORCID http://orcid.org/0009-0006-6746-7555
Amberly RicksMicroelectronics Research Center and Electrical and Computer Engineering Department, University of Texas at Austin, Austin, TX, USA.
Rithvik RameshMicroelectronics Research Center and Electrical and Computer Engineering Department, University of Texas at Austin, Austin, TX, USA.ORCID http://orcid.org/0000-0001-7026-9580
Yiwei JuDepartment of Materials Science and Engineering, University of California, Irvine, Irvine, CA, USA.
Moaz WaqarDepartment of Materials Science and Engineering, University of California, Irvine, Irvine, CA, USA.ORCID http://orcid.org/0000-0001-6297-5194
Theodore P LetsouHarvard John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, USA.ORCID http://orcid.org/0009-0007-0757-2377
Christina M SpägeleHarvard John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, USA.
Hyunseung JungCenter for Integrated Nanotechnologies, Sandia National Laboratories, Albuquerque, NM, USA.ORCID http://orcid.org/0000-0002-3925-3238
Igal BrenerCenter for Integrated Nanotechnologies, Sandia National Laboratories, Albuquerque, NM, USA.ORCID http://orcid.org/0000-0002-2139-5182
Xiaoqing PanDepartment of Materials Science and Engineering, University of California, Irvine, Irvine, CA, USA.ORCID http://orcid.org/0000-0002-0965-8568
Marcus OssianderHarvard John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, USA. marcus.ossiander@tugraz.at.ORCID http://orcid.org/0000-0001-5925-8768
Seth R BankMicroelectronics Research Center and Electrical and Computer Engineering Department, University of Texas at Austin, Austin, TX, USA.
Federico CapassoHarvard John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, USA. capasso@seas.harvard.edu.ORCID http://orcid.org/0000-0003-4534-8249

Funding

DOE | National Nuclear Security Administration (NNSA) DE-NA0003525National Science Foundation (NSF) ECCS-2025158United States Department of Defense | United States Air Force | AFMC | Air Force Office of Scientific Research (AF Office of Scientific Research) FA9550-22-1-0307
6 · The paper itself

Abstract

Nonlinear frequency conversion underpins important technologies such as telecommunications and quantum computation; however, weak nonlinearities and architectures that resist miniaturization currently limit devices' efficiency and widespread adoption. Here we combine a band-structure-engineered GaAs/AlGaAs multi-quantum-well heterostructure with a high-quality-factor dielectric metasurface and symmetry-broken guided-mode field profiles to enhance the material nonlinear susceptibility. By engineering a resonant interband transition in the heterostructure, we realize a second-order nonlinear tensor element of 1.6 nm V

Identifiers

PMID42686847

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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.