论文标题
周期二倍的浮球
Period-doubled Floquet Solitons
论文作者
论文摘要
我们提出并在实验上证明了大部分光子拓扑绝缘子的浮雕孤子家族，其驱动器周期两倍。我们的实验系统由飞秒激光写作制造的光学波导的定期调制的蜂窝晶格组成。我们采用了Kerr非线性，在这种非线性中会产生空间晶格孤子。我们的光子系统构成了一个强大的平台，可以以高度可调的方式探测时间周期驾驶，拓扑和非线性的相互作用。
We propose and experimentally demonstrate a family of Floquet solitons in the bulk of a photonic topological insulator that have double the period of the drive. Our experimental system consists of a periodically-modulated honeycomb lattice of optical waveguides fabricated by femtosecond laser writing. We employ a Kerr nonlinearity in which self-focusing gives rise to spatial lattice solitons. Our photonic system constitutes a powerful platform where the interplay of time-periodic driving, topology and nonlinearity can be probed in a highly tunable way.
