Observation of Localized States in Lieb Photonic Lattices
Observation of Localized States in Lieb Photonic Lattices
复制标题
DOI：
10.1103/physrevlett.114.245503
复制
发表时间：
2015-06-15
影响因子：
8.6
通讯作者：
Molina, Mario I.
中科院分区：
文献类型：
--
作者：
Vicencio, Rodrigo A.;Cantillano, Camilo;Molina, Mario I.
我们首次在实验中证明了连续统中的一种新型局域态，即平带晶格中的类紧致线性态。为此，我们采用了光子利布晶格，它表现出三个紧密结合的带，其中一个是完全平坦的。离散预测得到了实际连续数值模拟和直接实验的证实。我们的结果对于基础物理学以及各种需要在长距离上以无衍射和局部方式传导光的应用具有重要意义。
We present the first experimental demonstration of a new type of localized state in the continuum, namely, compacton-like linear states in flat-band lattices. To this end, we employ photonic Lieb lattices, which exhibit three tight-binding bands, with one being perfectly flat. Discrete predictions are confirmed by realistic continuous numerical simulations as well as by direct experiments. Our results could be of great importance for fundamental physics as well as for various applications where light needs to be conducted in a diffractionless and localized manner over long distances.