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arXiv 1105.2177cond-mat.mes-hall
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Casimir力引起的悬浮微纳谐振器的能量损失机制

Energy loss mechanism for suspended micro- and nanoresonators due to the Casimir force

André Gusso

摘要:

从理论上研究了悬浮微纳谐振器中由于非接触声能量损失而引起的能量损失机理。该机制在于将来自谐振器的振动运动的机械能转换成附近大结构(例如衬底)上的声波,这是由于谐振器和那些结构之间的耦合,该耦合是由作用在分离间隙上的卡西米尔力引起的。所得到的品质因数Q的悬臂梁和桥梁的微型和纳米谐振器在接近底层衬底的解析表达式推导和相关的机制进行了调查,证明其重要性时,涉及纳米间隙。

英文摘要:

A so far not considered energy loss mechanism in suspended micro- and nanoresonators due to noncontact acoustical energy loss is investigated theoretically. The mechanism consists on the conversion of the mechanical energy from the vibratory motion of the resonator into acoustic waves on large nearby structures, such as the substrate, due to the coupling between the resonator and those structures resulting from the Casimir force acting over the separation gaps. Analytical expressions for the resulting quality factor Q for cantilever and bridge micro- and nanoresonators in close proximity to an underlying substrate are derived and the relevance of the mechanism is investigated, demonstrating its importance when nanometric gaps are involved.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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