{"title":"Nonreciprocal frequency combs by two-photon driving in cavity magnonics.","authors":"Yilou Liu, Kai-Kai Zhang, Rui-Shan Zhao, Xiaolong Fei, Xinchen Liu, Ziyu Jia, Xiangye Liu, Xiao-Tao Xie","doi":"10.1364/OL.562248","DOIUrl":null,"url":null,"abstract":"<p><p>We investigate an intriguing scheme to realize nonreciprocal frequency combs in a compound system comprising a YIG sphere and two coupled whispering-gallery-mode microring resonators. The phase-matching condition is satisfied when the driving fields of the two resonators are in the same direction and vice versa. Numerical simulations of the cavity magnonic dynamics show that the frequency comb exhibits significant differences due to the asymmetry of the nonlinear response in different directions. Furthermore, the proposed scheme offers greater flexibility compared to conventional cavity magnonic systems, allowing easy tuning of the number of frequency combs (i.e., tuning of the nonreciprocal strength) by adjusting the two-photon driving strength. In addition to elucidating optical nonreciprocity in cavity magnonics, this research may also find potential applications in optical frequency metrology and precision measurements.</p>","PeriodicalId":19540,"journal":{"name":"Optics letters","volume":"50 13","pages":"4234-4237"},"PeriodicalIF":3.3000,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Optics letters","FirstCategoryId":"101","ListUrlMain":"https://doi.org/10.1364/OL.562248","RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"OPTICS","Score":null,"Total":0}
引用次数: 0
Abstract
We investigate an intriguing scheme to realize nonreciprocal frequency combs in a compound system comprising a YIG sphere and two coupled whispering-gallery-mode microring resonators. The phase-matching condition is satisfied when the driving fields of the two resonators are in the same direction and vice versa. Numerical simulations of the cavity magnonic dynamics show that the frequency comb exhibits significant differences due to the asymmetry of the nonlinear response in different directions. Furthermore, the proposed scheme offers greater flexibility compared to conventional cavity magnonic systems, allowing easy tuning of the number of frequency combs (i.e., tuning of the nonreciprocal strength) by adjusting the two-photon driving strength. In addition to elucidating optical nonreciprocity in cavity magnonics, this research may also find potential applications in optical frequency metrology and precision measurements.
期刊介绍：
The Optical Society (OSA) publishes high-quality, peer-reviewed articles in its portfolio of journals, which serve the full breadth of the optics and photonics community.
Optics Letters offers rapid dissemination of new results in all areas of optics with short, original, peer-reviewed communications. Optics Letters covers the latest research in optical science, including optical measurements, optical components and devices, atmospheric optics, biomedical optics, Fourier optics, integrated optics, optical processing, optoelectronics, lasers, nonlinear optics, optical storage and holography, optical coherence, polarization, quantum electronics, ultrafast optical phenomena, photonic crystals, and fiber optics. Criteria used in determining acceptability of contributions include newsworthiness to a substantial part of the optics community and the effect of rapid publication on the research of others. This journal, published twice each month, is where readers look for the latest discoveries in optics.
求助内容：
应助结果提醒方式：
京公网安备 11010802042870号
