论文标题
在带有谐振通道的波导中对自动镇的分裂和声学诱导的透明度进行建模
Modelling Autler-Townes splitting and acoustically induced transparency in a waveguide loaded with resonant channels
论文作者
论文摘要
我们研究了带有两个谐振侧支流通道的波导中的声波传播。在低频制度中，得出了一维模型，其中将通道的效果降低至整个连接处的跳跃条件。当分离距离在波长的尺度上（通常考虑的情况）时，跳跃条件涉及单个通道和声学诱导的透明度（AIT），这是由于两个连接之间的相位干扰而引起的。相反，当分离距离为亚波长时，必须考虑一个连接点，而跳跃条件则是偶像终极耦合这两个通道的情况。这样的频道对可以散射为偶极子，从而导致由于Autler -Townes分裂（ATS）而导致完美的传输。我们表明，将这两种机制结合起来提供了控制传输光谱的额外自由度。
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.
