Whispering gallery mode cavities, due to their high quality factors, small mode volumes, and simple fabrications, have potential applications in photonic devices and ultrasensitive mass sensing. Cavity optomechanic systems based on whispering gallery mode cavities have draw tremendous attention in recent years due to the fact that they reveal and explore fundamental quantum physics and pave the way for potential applications of optomechanical devices. Unfortunately, whispering gallery mode based cavity optomechanics still lies in a single optical mode coupled to a single mechanical mode. Here, in this work, we propose an ultrasensitive and high resolution optical mass sensor by photonic-molecule optomechanics driven by two-tone field, where the optomechanical cavity driven by a weak coherent phonon pump is coupled to an auxiliary optical cavity. The auxiliary cavity plays the role of decreasing the mechanical damping rate while the weak coherent phonon pump to the mechanical mod...

中文翻译：

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光子分子光机电与声子泵的超灵敏高分辨率质量传感器

由于其高质量因素，小模式体积和简单的制造，回音壁模式腔体在光子器件和超灵敏质量感测中具有潜在的应用。近年来，基于耳语画廊模式腔体的腔体光机械系统引起了极大的关注，因为它们揭示并探索了基本的量子物理学，并为光机械装置的潜在应用铺平了道路。不幸的是，基于耳语画廊模式的腔体光力学仍然处于耦合到单一机械模式的单一光学模式。在这里，在这项工作中，我们提出了一种由双音场驱动的光子分子光机械所构成的超灵敏，高分辨率的光学质量传感器，其中由弱相干声子泵驱动的光机械腔与辅助光腔耦合。