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首页> 外文期刊>Nature photonics >Lasing in topological edge states of a one-dimensional lattice
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Lasing in topological edge states of a one-dimensional lattice

机译：在一维格子的拓扑边缘状态下激光

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摘要

Topology describes properties that remain unaffected by smooth distortions. Its main hallmark is the emergence of edge states localized at the boundary between regions characterized by distinct topological invariants. Because their properties are inherited from the topology of the bulk, these edge states present a strong immunity to distortions of the underlying architecture. This feature offers new opportunities for robust trapping of light in nano-and micrometre-scale systems subject to fabrication imperfections and environmentally induced deformations. Here, we report lasing in such topological edge states of a one-dimensional lattice of polariton micropillars that implements an orbital version of the Su-Schrieffer-Heeger Hamiltonian. We further demonstrate that lasing in these states persists under local deformations of the lattice. These results open the way to the implementation of chiral lasers in systems with broken time-reversal symmetry and, when combined with polariton interactions, to the study of nonlinear phenomena in topological photonics.
机译：拓扑描述了通过平滑扭曲不受影响的特性。其主要的标志是所揭示在区域之间的边界的边缘状态的出现，其特征在于不同的拓扑不变。由于它们的性质从散装的拓扑继承，因此这些边缘状态为底层架构的扭曲引起了强烈的免疫力。此功能为纳米和微米级系统中的光线捕获提供了新的机会，如有缺乏制造瑕疵和环保变形。在这里，我们在Polariton Micropillars的一维晶格的这种拓扑边缘状态中报告了实现的苏-Schrieffer-Heeger Hamiltonian的轨道版本。我们进一步证明这些国家的激光持续在晶格的局部变形下。这些结果开启了在具有破裂时间反转对称的系统中的手性激光器的实施方式，并且在与POARITITON相互作用结合时，在拓扑光子学中的非线性现象研究。

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  • 来源
    《Nature photonics》 |2017年第10期|共7页
  • 作者

    St-Jean P.; Goblot V.; Galopin E.; Lemaitre A.; Ozawa T.; Le Gratiet L.; Sagnes I.; Bloch J.; Amo A.;

  • 作者单位

    Univ Paris Saclay Univ Paris Sud Ctr Nanosci &

    Nanotechnol CNRS Marcoussis C2N F-91460 Marcoussis France;

    Univ Paris Saclay Univ Paris Sud Ctr Nanosci &

    Nanotechnol CNRS Marcoussis C2N F-91460 Marcoussis France;

    Univ Paris Saclay Univ Paris Sud Ctr Nanosci &

    Nanotechnol CNRS Marcoussis C2N F-91460 Marcoussis France;

    Univ Paris Saclay Univ Paris Sud Ctr Nanosci &

    Nanotechnol CNRS Marcoussis C2N F-91460 Marcoussis France;

    Univ Trento INO CNR BEC Ctr I-38123 Povo Italy;

    Univ Paris Saclay Univ Paris Sud Ctr Nanosci &

    Nanotechnol CNRS Marcoussis C2N F-91460 Marcoussis France;

    Univ Paris Saclay Univ Paris Sud Ctr Nanosci &

    Nanotechnol CNRS Marcoussis C2N F-91460 Marcoussis France;

    Univ Paris Saclay Univ Paris Sud Ctr Nanosci &

    Nanotechnol CNRS Marcoussis C2N F-91460 Marcoussis France;

    Univ Paris Saclay Univ Paris Sud Ctr Nanosci &

    Nanotechnol CNRS Marcoussis C2N F-91460 Marcoussis France;

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  • 正文语种 eng
  • 中图分类 光学;
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