AI 中文总结
研究在混合腔磁力学系统中，利用巴尼特效应实现可调非互易古斯-汉欣位移，通过磁子-光子与磁子-声子耦合的相反影响及腔长的可调性，为磁可重构微波光子器件提供了可行方案。
AI 中文摘要
我们提出了一种在混合腔磁力学系统中实现可调非互易古斯-汉欣位移（GHS）的理论方案。该装置包含一个嵌入微波腔中的旋转钇铁石榴石球，其中磁偶极相互作用和磁致伸缩相互作用分别介导磁子-光子耦合和磁子-声子耦合。由于巴尼特效应，磁子频率会产生由旋转引起的位移，该位移的符号可通过改变偏置磁场的方向反转。我们表明，输出探测光谱呈现法诺共振，而相关的GHS对相反磁场方向表现出不对称响应，为非互易光束位移提供了可控机制。研究发现，磁子-光子和磁子-声子相互作用对GHS的影响相反，而腔长提供了额外的可调谐自由度。这些结果为磁可重构微波光子器件和巴尼特诱导有效场的灵敏探测提供了途径。
英文摘要
We propose a theoretical scheme for realizing a tunable nonreciprocal Goos-Hänchen shift (GHS) in a hybrid cavity magnomechanical system. The setup consists of a rotating yttrium iron garnet sphere embedded in a microwave cavity, with magnetic-dipole and magnetostrictive interactions mediating magnon-photon and magnon-phonon couplings, respectively. Owing to the Barnett effect, the magnon frequency acquires a rotation-induced shift whose sign can be reversed by changing the direction of the bias magnetic field. We show that the output probe spectrum exhibits a Fano resonance, while the associated GHS responds asymmetrically to opposite field directions, providing a controllable mechanism for nonreciprocal beam shifts. The magnon-photon and magnon-phonon interactions are found to affect the GHS in opposite ways, while the cavity length offers an additional degree of tunability. These results provide a route toward magnetically reconfigurable microwave photonic devices and sensitive detection of Barnett-induced effective fields.
Comments10pages, 9 figures
