Evidence map›Paper›PMID 40913067›Full record

ArticleNature nanotechnology2025

Towards Floquet Chern insulators of light.

Jicheng Jin, Li He, Jian Lu, Lin Chang, Chen Shang, John E Bowers, Eugene J Mele, Bo Zhen

Abstract read
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In one paragraph

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 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing 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

3 citing papers in PubMed.

  1. Article
  2. Photonic arbitrary Chern vectors.Science advances · 2026
    Article
  3. 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

8 authors.

Jicheng Jin *Department of Physics and Astronomy, University of Pennsylvania, Philadelphia, PA, USA.ORCID http://orcid.org/0000-0002-1572-0006
Li He *Department of Physics and Astronomy, University of Pennsylvania, Philadelphia, PA, USA.
Jian LuDepartment of Physics and Astronomy, University of Pennsylvania, Philadelphia, PA, USA.
Lin ChangDepartment of Electrical and Computer Engineering, University of California, Santa Barbara, Santa Barbara, CA, USA.
Chen ShangDepartment of Electrical and Computer Engineering, University of California, Santa Barbara, Santa Barbara, CA, USA.
John E BowersDepartment of Electrical and Computer Engineering, University of California, Santa Barbara, Santa Barbara, CA, USA.ORCID http://orcid.org/0000-0003-4270-8296
Eugene J MeleDepartment of Physics and Astronomy, University of Pennsylvania, Philadelphia, PA, USA.ORCID http://orcid.org/0000-0001-7140-5353
Bo ZhenDepartment of Physics and Astronomy, University of Pennsylvania, Philadelphia, PA, USA. bozhen@sas.upenn.edu.ORCID http://orcid.org/0000-0001-8815-3893

Funding

United States Department of Defense | Defense Advanced Research Projects Agency (DARPA) HR00112220013United States Department of Defense | United States Army | U.S. Army Research, Development and Engineering Command | Army Research Office (ARO) W911NF-19-1-0087United States Department of Defense | United States Navy | Office of Naval Research (ONR) N00014-21-1-2703United States Department of Defense | United States Navy | ONR | Office of Naval Research Global (ONR Global) N00014-21-1-2703U.S. Department of Energy (DOE) DE-FG02-84ER45118
6 · The paper itself

Abstract

Topological photonics explores photonic systems that exhibit robustness against defects and disorder, enabled by protection from underlying topological phases. These phases are typically realized in linear optical systems and characterized by their intrinsic photonic band structures. Here we experimentally study Floquet Chern insulators in periodically driven nonlinear photonic crystals, where the topological phase is controlled by the polarization and the frequency of the driving field. Our transient sum-frequency generation measurements reveal strong hybridization of the Floquet photonic bands. The measured spectrum remains gapless under a linearly polarized drive but becomes gapped under a circularly polarized drive. Theoretical analysis confirms that the Floquet gap is topological, characterized by a non-zero Chern number-a consequence of time-reversal symmetry breaking induced by the circularly polarized driving field. This work offers opportunities to explore the role of classical optical nonlinearity in topological phases and their applications in nonlinear optoelectronics.

Identifiers

PMID40913067

What OpenQuestion holds

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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.