论文标题
在具有奇迹时间对称性的双层结构中相干引起的共振低。
Low coherence-induced resonance in double-layer structures having parity-time symmetry
论文作者
论文摘要
我们通过在空间频率图片中使用二阶经典相干理论来得出透射$ t $的简单公式和在任何分层的介电结构上的反射率$ r $ r $。形式主义应用于由双层层组成的特定结构，具有平衡的增益和损失，满足了平均时间对称条件。结果表明，在波长的顺序上，空间相干性较低的源可以在传输和反射幅度中诱导大谐振峰。随着空间连贯性的增加，共振峰消失了。
We derive simple formulae for the transmittance $T$ and reflectance $R$ of Gaussian-Schell beams incident upon any stratified dielectric structure by using second-order classical coherence theory in the space-frequency picture. The formalism is applied to a particular structure consisting of a double-layer, with balanced gain and loss, satisfying the parity-time symmetry conditions. It is shown that sources with a low degree of spatial coherence, on the order of the wavelength, can induce large resonant peaks in the transmitted and reflected amplitudes. The resonance peaks vanish as the spatial coherence increases.
