论文标题
连续的光学晶体具有结合状态
Optomechanical crystal with bound states in the continuum
论文作者
论文摘要
芯片刻刻的微型机械系统，呈无形的辐射压力，显示了它们在感应，信号转导和探索量子物理学方面具有机械谐振器的独特强度。作为领先的设备平台之一，光力学晶体可以同时对具有强光力耦合的光子光子和微波声子的带结构进行模制。在这里，我们在8 GHz的连续体（BICS）中授权的二维平板基底结构中展示了一种新型的光力晶体。我们显示了对称性诱导的BIC出现，光学机械耦合最高为$ g/2π\大约2.5 $ mHz每个单位电池，与低维的光力机械晶体相当。我们的工作铺平了探索光子量相互作用以外的悬浮微腔的方式，这可能导致从声子传感到量子转导的新型光学机械应用。
Chipscale micro- and nano-optomechanical systems, hinging on the intangible radiation-pressure force, have shown their unique strength in sensing, signal transduction, and exploration of quantum physics with mechanical resonators. Optomechanical crystals, as one of the leading device platforms, enable simultaneous molding of the band structure of optical photons and microwave phonons with strong optomechanical coupling. Here, we demonstrate a new breed of optomechanical crystals in two-dimensional slab-on-substrate structures empowered by mechanical bound states in the continuum (BICs) at 8 GHz. We show symmetry-induced BIC emergence with optomechanical couplings up to $g/2π\approx 2.5$ MHz per unit cell, on par with low-dimensional optomechanical crystals. Our work paves the way towards exploration of photon-phonon interaction beyond suspended microcavities, which might lead to new applications of optomechanics from phonon sensing to quantum transduction.
