共振通道加载波导中Autler-Townes分裂和声致透明的模拟
Modelling Autler-Townes splitting and acoustically induced transparency in a waveguide loaded with resonant channels
摘要：
本文研究了声波在带有两个谐振分支通道的波导中的传播。在低频率制度，一维模型推导出的通道的效果被减少到跨越交界处的跳跃条件。当分离距离在波长的尺度上时，这是通常考虑的情况，跳跃条件涉及单个通道，并且由于两个结之间的异相干扰而发生声致透明（AIT）。相反，当分离距离是亚波长时，必须考虑单个结，并且跳跃条件考虑耦合两个通道的倏逝场。这样的信道对可以作为偶极子散射，导致由于奥特勒-汤斯分裂（ATS）而导致的完美传输。我们表明，结合这两种机制提供了额外的自由度来控制透射光谱。
英文摘要：
We study acoustic wave propagation in a waveguide loaded with two resonant side-branch channels. In the low frequency regime, one-dimensional models are derived in which the effect of the channels are reduced to jump conditions across the junction. When the separation distance is on the scale of the wavelength, which is the case that is usually considered, the jump conditions involve a single channel and acoustically induced transparency (AIT) occurs due to out-of-phase interferences between the two junctions. In contrast, when the separation distance is subwavelength, a single junction has to be considered and the jump conditions account for the evanescent field coupling the two channels. Such channel pairs can scatter as a dipole resulting in perfect transmission due to Autler - Townes splitting (ATS). We show that combining the two mechanisms offers additional degrees of freedom to control the transmission spectra.
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。
