{"title":"观察双谐振非线性拓扑电路中拓扑增强的三次谐波生成","authors":"Weipeng Hu, Banxian Ruan, Wei Lin, Chao Liu, Xiaoyu Dai, Shuangchun Wen, Yuanjiang Xiang","doi":"10.1038/s42005-024-01696-5","DOIUrl":null,"url":null,"abstract":"The ability to confine and guide wave makes topological physics a promising platform for large local field enhancement and strong scattering immunity, which enables efficient nonlinear processes. In this research, we employ a mirror-stacking approach to achieve resonance through two distinct frequency localized states (LSs) in one-dimensional topological circuits, introducing a novel method for validating topological states to facilitate harmonic enhancement. Experimental results reveal that the harmonic wave power increases significantly, by two orders of magnitude, when both the fundamental and harmonic waves are in LSs, in contrast to cases where only one wave is localized. The conversion efficiency is 15.7 times that when the fundamental wave is in a localized state and the harmonic is in a transmission mode. This method, leveraging double-resonance in topological LSs, not only advances harmonic generation in topolectrical circuits but also opens up possibilities for innovative applications in the broader field of photonic technology. This paper presents a study on topologically enhanced third harmonic generation within resonant nonlinear topolectrical circuits. The authors demonstrate that the implementation of a mirror-stacking approach in one-dimensional topological circuits enables achieving significant harmonic wave power increase, leading to efficient nonlinear processes.","PeriodicalId":10540,"journal":{"name":"Communications Physics","volume":null,"pages":null},"PeriodicalIF":5.4000,"publicationDate":"2024-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.nature.com/articles/s42005-024-01696-5.pdf","citationCount":"0","resultStr":"{\"title\":\"Observation of topologically enhanced third harmonic generation in doubly resonant nonlinear topolectrical circuits\",\"authors\":\"Weipeng Hu, Banxian Ruan, Wei Lin, Chao Liu, Xiaoyu Dai, Shuangchun Wen, Yuanjiang Xiang\",\"doi\":\"10.1038/s42005-024-01696-5\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The ability to confine and guide wave makes topological physics a promising platform for large local field enhancement and strong scattering immunity, which enables efficient nonlinear processes. In this research, we employ a mirror-stacking approach to achieve resonance through two distinct frequency localized states (LSs) in one-dimensional topological circuits, introducing a novel method for validating topological states to facilitate harmonic enhancement. Experimental results reveal that the harmonic wave power increases significantly, by two orders of magnitude, when both the fundamental and harmonic waves are in LSs, in contrast to cases where only one wave is localized. The conversion efficiency is 15.7 times that when the fundamental wave is in a localized state and the harmonic is in a transmission mode. This method, leveraging double-resonance in topological LSs, not only advances harmonic generation in topolectrical circuits but also opens up possibilities for innovative applications in the broader field of photonic technology. This paper presents a study on topologically enhanced third harmonic generation within resonant nonlinear topolectrical circuits. The authors demonstrate that the implementation of a mirror-stacking approach in one-dimensional topological circuits enables achieving significant harmonic wave power increase, leading to efficient nonlinear processes.\",\"PeriodicalId\":10540,\"journal\":{\"name\":\"Communications Physics\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":5.4000,\"publicationDate\":\"2024-06-25\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://www.nature.com/articles/s42005-024-01696-5.pdf\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Communications Physics\",\"FirstCategoryId\":\"101\",\"ListUrlMain\":\"https://www.nature.com/articles/s42005-024-01696-5\",\"RegionNum\":1,\"RegionCategory\":\"物理与天体物理\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"PHYSICS, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Communications Physics","FirstCategoryId":"101","ListUrlMain":"https://www.nature.com/articles/s42005-024-01696-5","RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"PHYSICS, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
摘要
拓扑物理具有限制和引导波的能力,这使得它成为一个很有前途的平台,可以增强大局部场并具有很强的抗散射能力,从而实现高效的非线性过程。在这项研究中,我们采用镜像堆叠方法,通过一维拓扑电路中两个不同频率的局部态(LS)实现共振,引入了一种验证拓扑态的新方法,以促进谐波增强。实验结果表明,当基波和谐波都处于局部态时,谐波功率会显著增加两个数量级,与只局部化一个波的情况形成鲜明对比。当基波处于局部化状态而谐波处于传输模式时,转换效率是基波的 15.7 倍。这种利用拓扑 LS 双共振的方法不仅推动了拓扑电路中谐波的产生,还为光子技术更广泛领域的创新应用提供了可能性。本文介绍了在谐振非线性拓扑电气电路中拓扑增强三次谐波产生的研究。作者证明,在一维拓扑电路中实施镜像堆叠方法能够显著提高谐波功率,从而实现高效的非线性过程。
Observation of topologically enhanced third harmonic generation in doubly resonant nonlinear topolectrical circuits
The ability to confine and guide wave makes topological physics a promising platform for large local field enhancement and strong scattering immunity, which enables efficient nonlinear processes. In this research, we employ a mirror-stacking approach to achieve resonance through two distinct frequency localized states (LSs) in one-dimensional topological circuits, introducing a novel method for validating topological states to facilitate harmonic enhancement. Experimental results reveal that the harmonic wave power increases significantly, by two orders of magnitude, when both the fundamental and harmonic waves are in LSs, in contrast to cases where only one wave is localized. The conversion efficiency is 15.7 times that when the fundamental wave is in a localized state and the harmonic is in a transmission mode. This method, leveraging double-resonance in topological LSs, not only advances harmonic generation in topolectrical circuits but also opens up possibilities for innovative applications in the broader field of photonic technology. This paper presents a study on topologically enhanced third harmonic generation within resonant nonlinear topolectrical circuits. The authors demonstrate that the implementation of a mirror-stacking approach in one-dimensional topological circuits enables achieving significant harmonic wave power increase, leading to efficient nonlinear processes.
期刊介绍:
Communications Physics is an open access journal from Nature Research publishing high-quality research, reviews and commentary in all areas of the physical sciences. Research papers published by the journal represent significant advances bringing new insight to a specialized area of research in physics. We also aim to provide a community forum for issues of importance to all physicists, regardless of sub-discipline.
The scope of the journal covers all areas of experimental, applied, fundamental, and interdisciplinary physical sciences. Primary research published in Communications Physics includes novel experimental results, new techniques or computational methods that may influence the work of others in the sub-discipline. We also consider submissions from adjacent research fields where the central advance of the study is of interest to physicists, for example material sciences, physical chemistry and technologies.