We investigate the absorption and transmission properties of a weak probe field under the influence of a strong control field in a cavity magnomechanical system. The system consists of two ferromagnetic-material yttrium iron garnet (YIG) spheres coupled to a single cavity mode. In addition to two magnon-induced transparencies (MITs) that arise due to magnon-photon interactions, we observe a magnomechanically induced transparency (MMIT) due to the presence of nonlinear magnon-phonon interaction. We discuss the emergence of Fano resonances and explain the splitting of a single Fano profile to double and triple Fano profiles due to additional couplings in the proposed system. Moreover, by considering a two-YIG system, the group delay of the probe field can be enhanced by one order of magnitude as compared with a single-YIG magnomechanical system. Furthermore, we show that the group delay depends on the tunability of the coupling strength of the first YIG with respect to the coupling frequency of of the second YIG, and vice versa. This helps to achieve larger group delays for weak magnon-photon coupling strengths.

中文翻译：

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可调节的多窗口在机械上诱导了透明性，Fano共振和从慢到快的光转换

我们研究了在腔体力学系统中在强控制场的影响下弱探针场的吸收和传输特性。该系统由耦合到单腔模式的两个铁磁材料钇铁石榴石（YIG）球组成。除了由于磁子-光子相互作用而产生的两个磁振子引起的透明性（MIT），我们还观察到由于存在非线性磁振子-声子相互作用而产生的磁致机械透明性（MMIT）。我们讨论了Fano共振的出现，并解释了由于拟议系统中的附加耦合而导致的单个Fano轮廓分裂为两倍和三倍的Fano轮廓。此外，通过考虑两个YIG系统，与单个YIG机械系统相比，探测场的群时延可以提高一个数量级。此外，我们表明群时延取决于第一YIG的耦合强度相对于第二YIG的耦合频率的可调性，反之亦然。对于弱的磁振子-光子耦合强度，这有助于实现更大的群延迟。