非垂直对称非晶硅超表面附近的强电场增强。

IF 8 2区材料科学 Q1 CHEMISTRY, PHYSICAL

Nanoscale Horizons Pub Date : 2025-06-11 DOI:10.1039/d5nh00225g

Zi-Jian Qu, Wen-Juan Shi, Zhao-Lu Wang, Cong-Fu Zhang, Hong-Jun Liu

{"title":"非垂直对称非晶硅超表面附近的强电场增强。","authors":"Zi-Jian Qu, Wen-Juan Shi, Zhao-Lu Wang, Cong-Fu Zhang, Hong-Jun Liu","doi":"10.1039/d5nh00225g","DOIUrl":null,"url":null,"abstract":"In this work, we propose a novel method to our knowledge for realizing a leakage mode with a super flat band through the modulation of two Friedrich-Wintgen bound states in the continuum (FW BICs) of a non-vertical symmetry metasurface. This unique mode is formed by partially breaking the BIC generated from the first excited collective magnetic dipole (MD) resonance in a sub-diffraction periodic system, which exhibits a low group velocity of 16 731 m s-1, while its quality factor (Q factor) is 217. We calculate that the near electric field enhancement reached 808 times at an incident angle θ of 9°22'. Our findings provide unique opportunities for realizing strong-enhanced nonlinear effects in metasurfaces.","PeriodicalId":93,"journal":{"name":"Nanoscale Horizons","volume":" ","pages":""},"PeriodicalIF":8.0000,"publicationDate":"2025-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Strong electric field enhancement near an amorphous silicon metasurface with non-vertical symmetry.\",\"authors\":\"Zi-Jian Qu, Wen-Juan Shi, Zhao-Lu Wang, Cong-Fu Zhang, Hong-Jun Liu\",\"doi\":\"10.1039/d5nh00225g\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"In this work, we propose a novel method to our knowledge for realizing a leakage mode with a super flat band through the modulation of two Friedrich-Wintgen bound states in the continuum (FW BICs) of a non-vertical symmetry metasurface. This unique mode is formed by partially breaking the BIC generated from the first excited collective magnetic dipole (MD) resonance in a sub-diffraction periodic system, which exhibits a low group velocity of 16 731 m s-1, while its quality factor (Q factor) is 217. We calculate that the near electric field enhancement reached 808 times at an incident angle θ of 9°22'. Our findings provide unique opportunities for realizing strong-enhanced nonlinear effects in metasurfaces.\",\"PeriodicalId\":93,\"journal\":{\"name\":\"Nanoscale Horizons\",\"volume\":\" \",\"pages\":\"\"},\"PeriodicalIF\":8.0000,\"publicationDate\":\"2025-06-11\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Nanoscale Horizons\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://doi.org/10.1039/d5nh00225g\",\"RegionNum\":2,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"CHEMISTRY, PHYSICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Nanoscale Horizons","FirstCategoryId":"88","ListUrlMain":"https://doi.org/10.1039/d5nh00225g","RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}

引用次数: 0

摘要

在这项工作中，我们提出了一种新的方法，通过调制非垂直对称超表面的两个Friedrich-Wintgen束缚态来实现具有超平坦带的泄漏模式。这种独特的模式是由亚衍射周期系统中第一次激发的集体磁偶极子（MD）共振产生的BIC部分断裂而形成的，该系统具有16 731 m s-1的低群速度，其质量因子（Q因子）为217。我们计算出在入射角θ为9°22′时，近场增强达到808倍。我们的发现为实现超表面的强增强非线性效应提供了独特的机会。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

查看原文本刊更多论文

Strong electric field enhancement near an amorphous silicon metasurface with non-vertical symmetry.

In this work, we propose a novel method to our knowledge for realizing a leakage mode with a super flat band through the modulation of two Friedrich-Wintgen bound states in the continuum (FW BICs) of a non-vertical symmetry metasurface. This unique mode is formed by partially breaking the BIC generated from the first excited collective magnetic dipole (MD) resonance in a sub-diffraction periodic system, which exhibits a low group velocity of 16 731 m s^-1, while its quality factor (Q factor) is 217. We calculate that the near electric field enhancement reached 808 times at an incident angle θ of 9°22'. Our findings provide unique opportunities for realizing strong-enhanced nonlinear effects in metasurfaces.

求助全文

通过发布文献求助，成功后即可免费获取论文全文。去求助

来源期刊

Nanoscale Horizons Materials Science-General Materials Science

CiteScore

16.30

自引率

1.00%

发文量

141

期刊介绍： Nanoscale Horizons stands out as a premier journal for publishing exceptionally high-quality and innovative nanoscience and nanotechnology. The emphasis lies on original research that introduces a new concept or a novel perspective (a conceptual advance), prioritizing this over reporting technological improvements. Nevertheless, outstanding articles showcasing truly groundbreaking developments, including record-breaking performance, may also find a place in the journal. Published work must be of substantial general interest to our broad and diverse readership across the nanoscience and nanotechnology community.