arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2102.12181quant-phphysics.app-phphysics.optics
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腔-磁振子极化激元系统中的相控光路干涉和快慢光可切换

Phase-controlled pathway interferences and switchable fast-slow light in a cavity-magnon polariton system

Jie Zhao, Longhao Wu, Tiefu Li, Yu-xi Liu, Franco Nori, Yulong Liu, Jiangfeng Du

摘要:

研究了由三维铜腔和钇铁石榴石(YIG)球组成的复合系统中的相控传输特性。通过调节磁振子泵浦和腔探测音的相对相位,周期性地发生相长干涉和相消干涉,这强烈地改变了腔场透射谱和光的群延迟。此外,泵浦-探测音调之间的可调幅度比允许我们进一步改善信号吸收或放大,伴随着显著增强的光学提前或延迟。相位和振幅比都可以用来实现原位可调谐和可切换的快-慢光。相位和振幅比的可调导致透射光的零反射和突然的快-慢光转变。我们的研究结果证实,通过耦合回路的直接磁振子泵浦提供了一个通用的路线,以实现可控的信号传输,存储和通信,这可以进一步扩展到量子制度,实现相干态处理或量子限制的精确测量。

英文摘要:

We study the phase controlled transmission properties in a compound system consisting of a 3D copper cavity and an yttrium iron garnet (YIG) sphere. By tuning the relative phase of the magnon pumping and cavity probe tones, constructive and destructive interferences occur periodically, which strongly modify both the cavity field transmission spectra and the group delay of light. Moreover, the tunable amplitude ratio between pump-probe tones allows us to further improve the signal absorption or amplification, accompanied by either significantly enhanced optical advance or delay. Both the phase and amplitude-ratio can be used to realize in-situ tunable and switchable fast-slow light. The tunable phase and amplitude-ratio lead to the zero reflection of the transmitted light and an abrupt fast-slow light transition. Our results confirm that direct magnon pumping through the coupling loops provides a versatile route to achieve controllable signal transmission, storage, and communication, which can be further expanded to the quantum regime, realizing coherent-state processing or quantum-limited precise measurements.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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