Evidence map›Paper›PMID 42089181›Full record

ArticleSmall (Weinheim an der Bergstrasse, Germany)2026

Quasi-BIC and Reflective Mode Coupling Drives SHG Beyond the Q Factor Limit.

Wenkai Yang, Hao Qin, Boqing Liu, Chuanyu Wang, Yilin Tang, Jiri Janousek, Xueqian Sun, Alex Y Song, Yuerui Lu

Abstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Small (Weinheim an der Bergstrasse, Germany), 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

9 authors.

Wenkai YangSchool of Engineering, College of Engineering, Computing and Cybernetics, the Australian National University, Canberra ACT, Australia.ORCID https://orcid.org/0009-0001-0356-2995
Hao QinSchool of Engineering, College of Engineering, Computing and Cybernetics, the Australian National University, Canberra ACT, Australia.
Boqing LiuSchool of Engineering, College of Engineering, Computing and Cybernetics, the Australian National University, Canberra ACT, Australia.
Chuanyu WangSchool of Engineering, College of Engineering, Computing and Cybernetics, the Australian National University, Canberra ACT, Australia.
Yilin TangSchool of Engineering, College of Engineering, Computing and Cybernetics, the Australian National University, Canberra ACT, Australia.
Jiri JanousekSchool of Engineering, College of Engineering, Computing and Cybernetics, the Australian National University, Canberra ACT, Australia.
Xueqian SunSchool of Engineering, College of Engineering, Computing and Cybernetics, the Australian National University, Canberra ACT, Australia.
Alex Y SongSchool of Electrical and Information Engineering, The University of Sydney, Sydney, New South Wales, Australia.
Yuerui LuSchool of Engineering, College of Engineering, Computing and Cybernetics, the Australian National University, Canberra ACT, Australia.

Funding

Air Force Office of Scientific Research (AFOSR) - Asian Office of Aerospace Research and Development (AOARD) FA2386-23-1-4051ANU Ph.D. student scholarship, Australian Research Council DP220102219ANU Ph.D. student scholarship, Australian Research Council DP240101011ANU Ph.D. student scholarship, Australian Research Council LE200100032ARC Centre of Excellence in Quantum Computation and Communication Technology CE170100012European Union under the Italian National Recovery and Resilience Plan (NRRP) CUP E63C22002040007H2020 Future and Emerging Technologies FETOPEN-2018-2020 899673Ministero dell'Istruzione e del Merito METEORMinistero dell'Istruzione e del Merito PRIN-2020 2020EY2LJT_002National Health and Medical Research Council GA275784NATO SPS G5984
6 · The paper itself

Abstract

Second harmonic generation (SHG) is a widely used nonlinear optical process for frequency conversion and quantum information processing. However, existing approaches to enhance SHG in metasurfaces that are based on quasi-bound state in the continuum (quasi-BIC) resonances are often constrained by the limited second-order nonlinear susceptibilities of materials and the practical challenge of achieving high quality (Q) factors. Here, an alternative strategy is proposed to enhance SHG by increasing the absorptance (A) at the quasi-BIC resonance. Using temporal coupled mode theory (TCMT), an analytical expression is derived to link SHG intensity with both the resonance Q factor and absorptance, showing that strong SHG can be achieved even with finite Q when absorptance is properly optimized. To validate this concept, a 3R phase of molybdenum disulfide (3R-MoS

Indexed as

absorptancedual‐resonance metasurfacenonlinear opticsquasi‐BICsecond harmonic generation

Identifiers

PMID42089181
PMCPMC13244292

What OpenQuestion holds

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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.