论文标题
在非铁晶状体微谐波阵列中的稳健界面状态激光器
Robust interface-state laser in non-Hermitian micro-resonator arrays
论文作者
论文摘要
我们提出了一种方案，通过在两个中间谐振耦合的非富谐音谐音链之间的界面来实现类似的界面状态激光器。我们发现，在将两个谐振链与界面的中间谐振器之间引入耦合之后，系统的光子主要聚集到中间谐振器附近的三个谐振器中。预计光子聚集到某些谐振器的现象有望构造光子存储，甚至是激光发生器。我们揭示了这种现象是通过分离的中间谐振器和两种非温质皮肤效应之间的关节作用引起的。特别是，我们详细介绍了拓扑琐碎的非铁谐振阵列中的界面状态激光器。我们发现，当任意谐振器激发时，可以在中间谐振器处的光子间歇性增殖，可以实现脉冲界面激光器。另外，我们揭示了拓扑上微不足道的非谐音谐振阵列中的脉冲界面激光器在某些情况下对现场缺陷不了解，在某些情况下，它们的机制主要由非额外耦合而不是拓扑保护诱导。我们的方案提供了一个有前途且出色的平台，可以研究微谐波阵列中的界面状态激光器。
We propose a scheme to achieve the analogous interface-state laser by dint of the interface between the two intermediate-resonator-coupled non-Hermitian resonator chains. We find that, after introducing the couplings between the two resonator chains and the intermediate resonator at the interface, the photons of the system mainly gather into the three resonators near the intermediate resonator. The phenomenon of the photon gathering towards the certain resonators is expected to construct the photon storage and even the laser generator. We reveal that the phenomenon is induced via the joint effect between the isolated intermediate resonator and two kinds of non-Hermitian skin effects. Specially, we investigate the interface-state laser in topologically trivial non-Hermitian resonator array in detail. We find that the pulsed interface-state laser can be achieved accompanying with the intermittent proliferation of the photons at the intermediate resonator when an arbitrary resonator is excited. Also, we reveal that the pulsed interface-state laser in the topologically trivial non-Hermitian resonator array is immune to the on-site defects in some cases, whose mechanism is mainly induced by the nonreciprocal couplings instead of the protection of topology. Our scheme provides a promising and excellent platform to investigate interface-state laser in the micro-resonator array.
