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Casimir Force Control Enabled by 3D Nanostructures

delete2025-05-16
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OA
AI
C
Calum Shelden
B
Benjamin Spreng
J
Joseph L. Garrett
T
Talat S. Rahman
J
Jongbum Kim *
J
Jeremy N. Munday *
DOI:10.1021/acs.nanolett.5c01101delete
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摘要

摘要

En 中文
卡西米尔力在亚微米距离下主导固体物体间的相互作用,并且通常限制了微机械器件在失效前的最小距离。在此,我们通过利用工程化3D纳米结构控制卡西米尔力,实验上克服了这一限制。利用我们近期开发的用于对准和测量两个微尺度物体在纳米尺度上力的方法,我们表征了球体与圆形柱体、空心圆柱体以及周期性柱阵列之间的力梯度。我们证明,在这些几何结构中,力的行为可以得到显著改变,导致单根柱体上的卡西米尔力被抑制了10倍。我们发现理论与实验结果一致,即使当物体尺寸与表面间距相当(即在一个约3倍的因子范围内)。我们预期,我们的结果将对未来微纳米尺度执行器、具有更高灵敏度和更小粘附力的光机器件以及先进仿生粘合剂的设计产生影响。
Keyword:
Casimir force
nanotechnology
van der Waals
MEMS
NEMS

期刊

Nano Letters 封面图
Nano Letters
IF:
9.1
论文数:
2.7W
被引数:
16.5W

机构

N
Norwegian University of Science and Technology
学者数:
1.7K
论文数: 927
被引数: 3.2W
U
Univ Maryland
学者数:
2.1K
论文数: 1.4K
被引数: 435
U
Univ Calif Davis
学者数:
2.0K
论文数: 1.4K
被引数: 360
K
Korea Institute of Science and Technology
学者数:
831
论文数: 390
被引数: 2.1W
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