Building a Casimir Metrology Platform with a commercial MEMS sensor
Building a Casimir Metrology Platform with a commercial MEMS sensor
复制标题
使用商用 MEMS 传感器构建卡西米尔计量平台
DOI：
10.1038/s41378-019-0054-5
复制
发表时间：
2019
期刊：
影响因子：
--
通讯作者：
Bishop, D.
中科院分区：
文献类型：
--
作者：
Stange, A.;Imboden, M.;Javor, J.;Barrett, L.;Bishop, D.
卡西米尔效应是电磁真空的量子涨落的物理表现。当两块金属板靠近放置时，通常小于1微米，它们之间的长波长模式被冻结，从而在板之间产生净吸引力，即使它们不带电，也会缩放asd−4（对于球平面几何形状为ord-3）。在本文中，我们观察卡西米尔效应在环境条件下使用修改后的电容式微机电系统（MEMS）传感器。使用反馈辅助拾取和放置组装工艺，我们能够将各种微结构连接到发布后的MEMS上，将其从惯性力传感器转换为具有pN（皮牛顿）分辨率的直接力测量平台。利用该系统，我们能够直接测量镀银微球和镀金硅片之间的卡西米尔力。该器件是利用卡西米尔效应实现廉价、灵敏、室温量子计量的一步。
The Casimir Effect is a physical manifestation of quantum fluctuations of the electromagnetic vacuum. When two metal plates are placed close together, typically much less than a micron, the long wavelength modes between them are frozen out, giving rise to a net attractive force between the plates, scaling asd−4(ord−3for a spherical-planar geometry) even when they are not electrically charged. In this paper, we observe the Casimir Effect in ambient conditions using a modified capacitive micro-electromechanical system (MEMS) sensor. Using a feedback-assisted pick-and-place assembly process, we are able to attach various microstructures onto the post-release MEMS, converting it from an inertial force sensor to a direct force measurement platform with pN (piconewton) resolution. With this system we are able to directly measure the Casimir force between a silver-coated microsphere and gold-coated silicon plate. This device is a step towards leveraging the Casimir Effect for cheap, sensitive, room temperature quantum metrology.