Fiber-type optomechanical array using high- Q microbottle resonators

作者：Motoki Asano, Hiroshi Yamaguchi, Hajime Okamoto · 发表于：Physical Review Applied · 年份：2024 · DOI：10.1103/physrevapplied.21.024013 · 被引用次数：2 · 研究领域：Mechanical and Optical Resonators、Advanced MEMS and NEMS Technologies、Force Microscopy Techniques and Applications

We demonstrate a fiber-type optomechanical array consisting of elastically interconnected silica microbottle resonators with high-$Q$ optical and mechanical modes. In total, $50$ optomechanical resonators fabricated by fine glass processing are uniformly arrayed on a silica fiber. Evanescent coupling of a tapered optical fiber to an arbitrary resonator allows for highly sensitive readout and efficient actuation of mechanical motion at an arbitrary position in the array. Phonon propagation through the $50$ microbottles is achieved by both linearly and parametrically driving a mechanical mode at one end and by detecting it at the other end. This optomechanical array is scalable, tunable, and lithography-free and can be extended to fiber-based sensory applications with structural flexibility and operability in various environments.