Parametric amplification in a torsional microresonator

被引：146

作者：

Carr, DW

Evoy, S

Sekaric, L

Craighead, HG

Parpia, JM

机构：

[1] Cornell Univ, Cornell Nanofabricat Facil, Ithaca, NY 14853 USA

[2] Cornell Univ, Cornell Ctr Mat Res, Ithaca, NY 14853 USA

来源：

APPLIED PHYSICS LETTERS | 2000年 / 77卷 / 10期

关键词：

D O I：

10.1063/1.1308270

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We observe parametric amplification in a torsional micron-scale mechanical resonator. An applied voltage is used to make a dynamic change to the torsional spring constant. Oscillating the spring constant at twice the resonant frequency results in a phase dependent amplification of the resonant motion. Our results agree well with the theory of parametric amplification. By taking swept frequency measurements, we observe interesting structure in the resonant response curves. (C) 2000 American Institute of Physics. [S0003-6951(00)05036-1].

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页码：1545 / 1547

页数：3

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