{"title":"Optomagnetically induced transparency and absorption in an actively driven cavity optomagnonic system","authors":"Wei-Jiang Wu, Qi Hong, Zi-Qi Wang, Yuan-Peng Peng, Yi-Pu Wang, Jian-Qiang You","doi":"10.1007/s11433-025-2924-4","DOIUrl":null,"url":null,"abstract":"<div><p>We demonstrate the first experimental realization and coherent control of optomagnetically induced transparency (OMIT) and absorption (OMIA) in a cavity optomagnonic system. Utilizing a yttrium iron garnet (YIG) slab coupled to a Fabry-Pérot optical cavity, we harness magnon-mediated Brillouin scattering to enable phase-sensitive light manipulation. By tuning the phase of the microwave drive, we realize reconfigurable switching between OMIT and OMIA, together with continuous control of the group delay, reaching up to 16 µs. The system supports multiple magnon modes, allowing flexible multimode operation. Our results establish cavity optomagnonics as a powerful platform for light control via collective spin excitations and offer promising opportunities for hybrid quantum information processing and precision magnetometry.</p></div>","PeriodicalId":774,"journal":{"name":"Science China Physics, Mechanics & Astronomy","volume":"69 6","pages":""},"PeriodicalIF":7.5000,"publicationDate":"2026-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Science China Physics, Mechanics & Astronomy","FirstCategoryId":"101","ListUrlMain":"https://link.springer.com/article/10.1007/s11433-025-2924-4","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
Abstract
We demonstrate the first experimental realization and coherent control of optomagnetically induced transparency (OMIT) and absorption (OMIA) in a cavity optomagnonic system. Utilizing a yttrium iron garnet (YIG) slab coupled to a Fabry-Pérot optical cavity, we harness magnon-mediated Brillouin scattering to enable phase-sensitive light manipulation. By tuning the phase of the microwave drive, we realize reconfigurable switching between OMIT and OMIA, together with continuous control of the group delay, reaching up to 16 µs. The system supports multiple magnon modes, allowing flexible multimode operation. Our results establish cavity optomagnonics as a powerful platform for light control via collective spin excitations and offer promising opportunities for hybrid quantum information processing and precision magnetometry.
期刊介绍：
Science China Physics, Mechanics & Astronomy, an academic journal cosponsored by the Chinese Academy of Sciences and the National Natural Science Foundation of China, and published by Science China Press, is committed to publishing high-quality, original results in both basic and applied research.
Science China Physics, Mechanics & Astronomy, is published in both print and electronic forms. It is indexed by Science Citation Index.
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Reviews summarize representative results and achievements in a particular topic or an area, comment on the current state of research, and advise on the research directions. The author’s own opinion and related discussion is requested.
Research papers report on important original results in all areas of physics, mechanics and astronomy.
Brief reports present short reports in a timely manner of the latest important results.
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