Parametric mode mixing in asymmetric doubly clamped beam resonators
Parametric mode mixing in asymmetric doubly clamped beam resonators
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DOI：
10.1088/1367-2630/15/1/015023
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发表时间：
2013-01
影响因子：
3.3
通讯作者：
H. Yamaguchi;I. Mahboob
中科院分区：
文献类型：
--
作者：
H. Yamaguchi;I. Mahboob
本文提出了一个双固支梁谐振腔中不同模式间参量混合的微观机理模型。在两个振荡模式之间的频率差处沿梁轴的正弦张力调制沿着混合模式。虽然只有当两个模式具有相同的奇偶性在一个均匀的光束结构的混合发生，我们表明，调制也可以混合模式具有不同的奇偶性，通过引入光束形状和质量负载的不对称性。计算结果与实验结果吻合较好。
A model for the microscopic mechanism of parametric mixing between different modes in a single doubly clamped beam resonator is presented. Sinusoidal tension modulation along the beam axis at the frequency difference between two oscillation modes mixes the modes. Although the mixing occurs only when both the modes have the same parity in a uniform beam structure, we show that the modulation can also mix modes with different parities by introducing the beam-shape and mass-load asymmetry. The dominant contribution comes from the mass-load nonuniformity, and the calculation results show good agreement with experiments.