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arXiv 1604.04147physics.optics
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锯齿光子晶格中的输运

Transport in Sawtooth photonic lattices

Steffen Weimann, Luis Morales-Inostroza, Bastián Real, Camilo Cantillano, Alexander Szameit, Rodrigo A. Vicencio

摘要:

我们从理论和实验上研究了锯齿晶格的光子学实现。这种特殊的晶格表现出两个光谱带,其中一个经历了一个完全崩溃的高度退化的平带的一组特殊的网站间的耦合常数。我们报告了不同的传输机制,包括由于非衍射平带的出现而导致的强传输抑制的观测结果。此外,我们激发局域化的Shockley表面态,驻留在两个线性带之间的间隙。

英文摘要:

We investigate, theoretically and experimentally, a photonic realization of a Sawtooth lattice. This special lattice exhibits two spectral bands, with one of them experiencing a complete collapse to a highly degenerate flat band for a special set of inter-site coupling constants. We report the ob- servation of different transport regimes, including strong transport inhibition due to the appearance of the non-diffractive flat band. Moreover, we excite localized Shockley surfaces states, residing in the gap between the two linear bands.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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