An optomechanical crystal cavity with nonsuspended structure using ${\mathrm{As}}_2{\mathrm{S}}_3$ material is proposed. The principle of mode confinement in the nonsuspended cavity is analyzed, and two different types of optical and acoustic defect modes are calculated through appropriate design of the cavity structure. An optomechanical coupling rate of 82.3 kHz is obtained in the proposed cavity, and the designed acoustic frequency is 3.44 GHz. The acoustic mode coupling between two nonsuspended optomechanical crystal cavities is also demonstrated, showing that the proposed cavity structure has great potential for realizing further optomechanical applications in multicavity systems.

中文翻译：

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使用As ₂ S ₃硫属化物玻璃的非悬浮光机械晶体腔

具有非悬浮结构的光机械晶体腔，使用 ${\mathrm{作为}}_{\mathrm{2个}}{\mathrm{小号}}_3$建议的材料。分析了非悬浮腔中的模式限制原理，并通过适当设计腔结构，计算出两种不同类型的光学和声学缺陷模式。在拟议的腔中获得的光机械耦合率为82.3 kHz，设计的声频为3.44 GHz。还演示了两个非悬浮光机械晶体腔之间的声模耦合，表明所提出的腔结构具有实现多腔系统中进一步光机械应用的巨大潜力。