一种基于短时间测量的光致冷微盘的微道尔顿分辨率质量传感器
A micro dalton resolution mass sensor using optically cooled microdisks via short-time measurement
摘要：
我们提出了一个质量传感器，使用光学捕获和冷却的介质微盘与“测量后冷却”的计划。真空中被困粒子的质心运动可能会经历极低的耗散，从而与热浴产生鲁棒的解耦。因此，测量可以在光机冷却完成后声子数跳跃之前的短时间内完成。这种方法可以导致10^（-6）道尔顿的质量灵敏度，这比一个电子的质量小一千倍。
英文摘要：
We propose a mass sensor using optically trapped and cooled dielectric microdisks with "measuring after cooling" scheme. The center-of-mass motion of a trapped particle in vacuum can experience extremely low dissipation resulting in robust decoupling from the heat bath. Thus the measurement can be accomplished in a short time before a jump in the phonon number after the optomechanical cooling is finished. This method can lead to 10^(-6) dalton mass sensitivity which is a thousand times smaller than the mass of one electron.
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