Observation of locked intrinsic localized vibrational modes in a micromechanical oscillator array
Observation of locked intrinsic localized vibrational modes in a micromechanical oscillator array
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DOI：
10.1103/physrevlett.90.044102
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发表时间：
2003-01-31
影响因子：
8.6
通讯作者：
Craighead, HG
中科院分区：
文献类型：
--
作者：
Sato, M;Hubbard, BE;Craighead, HG
已经测量了周期性微力振荡器阵列的非线性振动特性。对于足够大的驱动器振幅，DI-ELEMENT悬臂阵列的光学模式变得不稳定，并分解为仅在几个单元格上的激发。观察到驾驶员引起的锁定效果，以使其中一些内在的局部模式永恒，以使它们的幅度固定并在空间上固定。
The nonlinear vibrational properties of a periodic micromechanical oscillator array have been measured. For sufficiently large amplitude of the driver, the optic mode of the di-element cantilever array becomes unstable and breaks up into excitations ranging over only a few cells. A driver-induced locking effect is observed to eternalize some of these intrinsic localized modes so that their amplitudes become fixed and the modes become spatially pinned.