论文标题
超级自发的四波混合在一系列硅微孔子中
Super spontaneous four-wave mixing in an array of silicon microresonators
论文作者
论文摘要
复合光学系统可以显示引人入胜的集体动力学。例如，量子发射器的合作衰减成通用的辐射模式可能会导致超沉载，其中集合的发射速率大于单个发射器速率的总和。在这里，我们报告了超自发的四波混合（Super SFWM）的实验证据，这是在集成光子设备上在参数非线性过程中生成光子对的类似作用。我们在硅光子芯片上与Bus波导的硅光子芯片上的一系列微孔谐振器中研究了这种现象。我们测量了一个合作对的生成率，该速度始终超过单个谐振器的速率不一致。我们研究了这种集体行为的基础物理机制，澄清损失的影响，并解决结果的基本和技术相关性的方面。
Composite optical systems can show compelling collective dynamics. For instance, the cooperative decay of quantum emitters into a common radiation mode can lead to superradiance, where the emission rate of the ensemble is larger than the sum of the rates of the individual emitters. Here, we report experimental evidence of super spontaneous four-wave mixing (super SFWM), an analogous effect for the generation of photon pairs in a parametric nonlinear process on an integrated photonic device. We study this phenomenon in an array of microring resonators on a silicon photonic chip coupled to bus waveguides. We measured a cooperative pair generation rate that always exceeds the incoherent sum of the rates of the individual resonators. We investigate the physical mechanisms underlying this collective behaviour, clarify the impact of loss, and address the aspects of fundamental and technological relevance of our results.
