Bozkurt Alkim, Joshi Chaitali, Mirhosseini Mohammad
Opt Express. 2022 Apr 11;30(8):12378-12386. doi: 10.1364/OE.455248.
Optomechanical crystals provide coupling between phonons and photons by confining them to commensurate wavelength-scale dimensions. We present a new concept for designing optomechanical crystals capable of achieving unprecedented coupling rates by confining optical and mechanical waves to deep sub-wavelength dimensions. Our design is based on a dielectric bowtie unit cell with an effective optical/mechanical mode volume of 7.6 × 10(λ/n)/1.2×10 . We present results from numerical modeling, indicating a single-photon optomechanical coupling of 2.2 MHz with experimentally viable parameters. Monte Carlo simulations are used to demonstrate the design's robustness against fabrication disorder.
光机械晶体通过将声子和光子限制在相应的波长尺度维度来实现它们之间的耦合。我们提出了一种设计光机械晶体的新概念，通过将光波和机械波限制在深亚波长维度，能够实现前所未有的耦合速率。我们的设计基于一种介电领结单元胞，其有效光学/机械模式体积为7.6×10(λ/n)/1.2×10 。我们给出了数值模拟结果，表明在实验可行的参数下，单光子光机械耦合为2.2兆赫兹。蒙特卡罗模拟用于证明该设计对制造无序的鲁棒性。
