This paper builds on the recent demonstrations of two-mode three-wave mixing and three-mode four-wave mixing pathways. In these individual mixing mechanisms, the drive and resonant frequencies intrinsically couple to generate frequency combs with spacing defined by the separation between drive and resonant frequencies. Such frequency combs resulting from N-mode N + 1-wave mixing processes possess spectral characteristics which are strikingly different from those of nominal N-mode parametric resonances. Now, in this paper, we experimentally show the possibility to simultaneously trigger one N = N 1-mode N = N 1 + 1-wave mixing and one nominal N = N 2-mode parametric resonance through the significant drive of a single phonon mode. This specific demonstration, when set alongside previous studies, represents an important step towards understanding phononic frequency comb processes.

中文翻译：

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微机电设备中多种多模非线性混合机制的共存

本文建立在最近对双模三波混频和三模四波混频路径的演示之上。在这些单独的混合机制中，驱动频率和谐振频率本质上耦合以生成频率梳，其间隔由驱动频率和谐振频率之间的间隔定义。这种由 N 模式 N + 1 波混频过程产生的频率梳具有与标称 N 模式参数共振明显不同的频谱特性。现在，在本文中，我们通过实验证明了通过单声子模式的显着驱动同时触发一个 N = N 1-mode N = N 1 + 1-wave 混合和一个标称 N = N 2-mode 参量谐振的可能性. 这个具体的演示，当与以前的研究一起进行时，