论文标题
亚波长谐振器的脱位系统中的强大边缘模式
Robust edge modes in dislocated systems of subwavelength resonators
论文作者
论文摘要
首先，设计具有子波长度隙的结构，然后引入缺陷，以使特征频率落在频带间隙内，可以实现次波长量表上的强稳定性操纵波。众所周知，这种频率与局部模式相对应。我们研究了一个亚波长谐振器的一维阵列，证明存在一个亚波长隙，并通过引入脱位来表明我们可以将局部模式放置在频带隙内的任何点。我们通过研究相应的谐振器有限阵列的稳定性来补充这一分析，从而证明了能够自定义特征值在频段间隙中的位置的价值。
Robustly manipulating waves on subwavelength scales can be achieved by, firstly, designing a structure with a subwavelength band gap and, secondly, introducing a defect so that eigenfrequencies fall within the band gap. Such frequencies are well known to correspond to localized modes. We study a one-dimensional array of subwavelength resonators, proving that there is a subwavelength band gap, and showing that by introducing a dislocation we can place localized modes at any point within the band gap. We complement this analysis by studying the stability properties of the corresponding finite array of resonators, demonstrating the value of being able to customize the position of eigenvalues within the band gap.
