Direct observation of defect modes in molecular aggregate analogs
Direct observation of defect modes in molecular aggregate analogs
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DOI：
10.1103/physrevb.102.224105
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发表时间：
2020-12
影响因子：
3.7
通讯作者：
M. Baraclough;I. Hooper;W. Barnes
中科院分区：
文献类型：
--
作者：
M. Baraclough;I. Hooper;W. Barnes
在这项工作中，我们调查的缺陷模式本地化的两端和大部分的一维超材料类似物的分子聚集体。这项研究是在微波领域进行的，其中超材料模拟物的cm尺度提供了一个机会，可以直接探测其近场深处的模式，这种方式在分子系统中不容易实现。为了证明这种方法的力量，我们将我们的观察结果与一个简单的Su，Schrieffer和Heeger（SSH）模型的预测进行比较，并找到了良好的定性一致性。
In this work we investigate defect modes localized at the ends and within the bulk of 1D metamaterial analogs of molecular aggregates. The study is undertaken in the microwave regime, where the cm scale of the metamaterial analog provides an opportunity to directly probe the modes deep within their near fields in ways not easily achieved in molecular systems. To demonstrate the power of this approach we compare our observations to predictions from a simple Su, Schrieffer, and Heeger (SSH) model and find good qualitative agreement.