{"title":"多纳米柱超表面连续体中的多重束缚态","authors":"Suxia Xie, Aodong Shen, Zhaoyou Zeng, Siyi Sun, Meidi Zhang","doi":"10.1007/s11468-024-02738-y","DOIUrl":null,"url":null,"abstract":"<div><p>The bound states in the continuum (BICs) of the photonic crystal (PhC) formed by period rectangular nanopillar arrays are demonstrated. By varying the structural parameters of rectangular nanopillar array, it is proved that the angle of incident light, the surrounding dielectric, and the number of nanopillars in a period can regulate BICs effectively. With the change of the number of nanopillar and structural parameters in period, the locations of both at-Γ BICs and off-Γ BICs change and the ultrahigh-quality factor (<i>Q</i>-factor) of BICs are obtained with a value more than 10<sup>6</sup>, which means the light has been completely confined in this nanopillar array structure. The BIC modes of this structure are related to the structural parameters of the metasurface, and the BIC has a high sensitivity to the change of the refractive index of the surrounding medium. This advantage of high sensitivity is conducive to the design of new photonic devices based on BIC, such as lasers, filters, and sensors.</p></div>","PeriodicalId":736,"journal":{"name":"Plasmonics","volume":"20 8","pages":"5735 - 5747"},"PeriodicalIF":4.3000,"publicationDate":"2025-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Multiple Bound States in the Continuum of the Metasurface with Multiple Nanopillars\",\"authors\":\"Suxia Xie, Aodong Shen, Zhaoyou Zeng, Siyi Sun, Meidi Zhang\",\"doi\":\"10.1007/s11468-024-02738-y\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>The bound states in the continuum (BICs) of the photonic crystal (PhC) formed by period rectangular nanopillar arrays are demonstrated. By varying the structural parameters of rectangular nanopillar array, it is proved that the angle of incident light, the surrounding dielectric, and the number of nanopillars in a period can regulate BICs effectively. With the change of the number of nanopillar and structural parameters in period, the locations of both at-Γ BICs and off-Γ BICs change and the ultrahigh-quality factor (<i>Q</i>-factor) of BICs are obtained with a value more than 10<sup>6</sup>, which means the light has been completely confined in this nanopillar array structure. The BIC modes of this structure are related to the structural parameters of the metasurface, and the BIC has a high sensitivity to the change of the refractive index of the surrounding medium. This advantage of high sensitivity is conducive to the design of new photonic devices based on BIC, such as lasers, filters, and sensors.</p></div>\",\"PeriodicalId\":736,\"journal\":{\"name\":\"Plasmonics\",\"volume\":\"20 8\",\"pages\":\"5735 - 5747\"},\"PeriodicalIF\":4.3000,\"publicationDate\":\"2025-02-05\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Plasmonics\",\"FirstCategoryId\":\"101\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s11468-024-02738-y\",\"RegionNum\":4,\"RegionCategory\":\"物理与天体物理\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"CHEMISTRY, PHYSICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Plasmonics","FirstCategoryId":"101","ListUrlMain":"https://link.springer.com/article/10.1007/s11468-024-02738-y","RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
Multiple Bound States in the Continuum of the Metasurface with Multiple Nanopillars
The bound states in the continuum (BICs) of the photonic crystal (PhC) formed by period rectangular nanopillar arrays are demonstrated. By varying the structural parameters of rectangular nanopillar array, it is proved that the angle of incident light, the surrounding dielectric, and the number of nanopillars in a period can regulate BICs effectively. With the change of the number of nanopillar and structural parameters in period, the locations of both at-Γ BICs and off-Γ BICs change and the ultrahigh-quality factor (Q-factor) of BICs are obtained with a value more than 106, which means the light has been completely confined in this nanopillar array structure. The BIC modes of this structure are related to the structural parameters of the metasurface, and the BIC has a high sensitivity to the change of the refractive index of the surrounding medium. This advantage of high sensitivity is conducive to the design of new photonic devices based on BIC, such as lasers, filters, and sensors.
期刊介绍：
Plasmonics is an international forum for the publication of peer-reviewed leading-edge original articles that both advance and report our knowledge base and practice of the interactions of free-metal electrons, Plasmons.
Topics covered include notable advances in the theory, Physics, and applications of surface plasmons in metals, to the rapidly emerging areas of nanotechnology, biophotonics, sensing, biochemistry and medicine. Topics, including the theory, synthesis and optical properties of noble metal nanostructures, patterned surfaces or materials, continuous or grated surfaces, devices, or wires for their multifarious applications are particularly welcome. Typical applications might include but are not limited to, surface enhanced spectroscopic properties, such as Raman scattering or fluorescence, as well developments in techniques such as surface plasmon resonance and near-field scanning optical microscopy.
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