Light propagation and acoustic vibrations can be controlled by designing the bandgap of phoxonic crystals, which support photonic and phononic bandgaps simultaneously. In this study, we numerically investigated the optical and mechanical properties of a clover-shaped 6H-SIC crystal microcavity. The results indicate that the frequency range of the phononic bandgap can be manipulated by adjusting the geometry of the structure, resulting in a wide phononic bandgap over 12 GHz centered at 30.8 GHz. The structure also supports strong localized optical modes for visible light with a Q-factor over 143. Within the photonic and phononic bandgaps of the phoxonic crystal, the structure can reduce mechanical vibrations and support a confined optical mode that can be used for trapping nanoparticles.

中文翻译：

---

具有光子和声子带隙的 6H-SiC 辉声微腔

光传播和声振动可以通过设计光子晶体的带隙来控制，该晶体同时支持光子和声子带隙。在这项研究中，我们对三叶草形 6H-SIC 晶体微腔的光学和机械性能进行了数值研究。结果表明，声子带隙的频率范围可以通过调整结构的几何形状来控制，从而产生以 30.8 GHz 为中心的超过 12 GHz 的宽声子带隙。该结构还支持可见光的强局域光学模式，Q 因子超过 143。在磷氧晶体的光子和声子带隙内，该结构可以减少机械振动并支持可用于捕获纳米颗粒的受限光学模式。