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Low-loss and high-resolution mechanical mode tuning in microspheres

机译：微球中的低损耗和高分辨率机械模式调谐

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摘要

Lack of tunability impedes the wide application of optomechanical systems; however, little research exists on mechanical frequency tuning. Herein, ultra-fine low-loss dynamical mechanical frequency tuning is achieved by compressing a microsphere along the axial direction. The tuning resolution reaches approximately 4% of the mechanical linewidth, and the variation range of the mechanical quality factor (Q(m)) is within 2.9% of the untouched Q(m). The roles of geometric deformation, spring effect, and stiffness were also evaluated through simulation and experimental analysis. Furthermore, sine function modulation was displayed, with a Pearson coefficient exceeding 99.3%, to achieve arbitrary-function mechanical resonance tuning. This method paves the way for scalable optomechanical applications, such as mechanical vibration synchronization or optomechanics-based optical wavelength conversion. (C) 2021 Optical Society of America
机译：可调谐性的缺乏阻碍了光机系统的广泛应用；然而，很少有关于机械频率调谐的研究。在此，通过沿轴向压缩微球来实现超细低损耗动态机械频率调谐。调谐分辨率约为机械线宽的4%，机械品质因数（Q（m））的变化范围在未接触Q（m）的2.9%以内。通过模拟和实验分析，评估了几何变形、弹簧效应和刚度的作用。此外，还显示了正弦函数调制，皮尔逊系数超过99.3%，以实现任意函数机械共振调谐。该方法为可扩展的光机应用铺平了道路，如机械振动同步或基于光机的光学波长转换。（2021）美国光学学会

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  • 来源
    《Optics Letters》 |2021年第7期|共4页
  • 作者

    Liang Jing-yu; Wang Min; Ruan Dong; Long Gui-Lu;

  • 作者单位

    Tsinghua Univ Dept Phys State Key Lab Low Dimens Quantum Phys Beijing 100084 Peoples R China;

    Tsinghua Univ Dept Phys State Key Lab Low Dimens Quantum Phys Beijing 100084 Peoples R China;

    Tsinghua Univ Dept Phys State Key Lab Low Dimens Quantum Phys Beijing 100084 Peoples R China;

    Tsinghua Univ Dept Phys State Key Lab Low Dimens Quantum Phys Beijing 100084 Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 计量学;光学;
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