Measurement of mass by optical forced oscillation of absorbing particles trapped in air

CORC > 上海光学精密机械研究所 > 中国科学院上海光学精密机械研究所 > 量子光学重点实验室

	Measurement of mass by optical forced oscillation of absorbing particles trapped in air
	Li, Yong-qing; Wang, Yuzhu; Wei, Rong; Deng, Jianliao; Lin, Jinda
刊名	J. Opt. Soc. Am. B-Opt. Phys.
	2017
卷号	34 期号:6 页码:1242
通讯作者	jinda@siom.ac.cn
英文摘要	We demonstrate the application of optical forced oscillation to measure the mass of an absorbing microparticle trapped in air. When the light intensity is modulated sinusoidally, the particle in the trap undergoes forced oscillation, and the amplitude of the oscillation depends directly on the modulation frequency. We obtain the stiffness of the optical trap and the mass of the trapped particle by fitting the experimental data of the amplitudes versus the modulation frequencies with a simple spring model. The fitting results show that, for a certain particle, the stiffness varies linearly with the trapping light intensity while the mass is constant. The density of the microparticle is also estimated, which has potential to classify different kinds of absorbing particles, such as C and CuO.
收录类别	SCI
资助信息	National Youth Foundation of China [11504393]; National Natural Science Foundation of China (NSFC) [91536220]
WOS记录号	WOS:000403944600033
内容类型	期刊论文
源URL	[http://ir.siom.ac.cn/handle/181231/27793]
专题	上海光学精密机械研究所_量子光学重点实验室
作者单位	中国科学院上海光学精密机械研究所
推荐引用方式 GB/T 7714	Li, Yong-qing,Wang, Yuzhu,Wei, Rong,et al. Measurement of mass by optical forced oscillation of absorbing particles trapped in air[J]. J. Opt. Soc. Am. B-Opt. Phys.,2017,34(6):1242.
APA	Li, Yong-qing,Wang, Yuzhu,Wei, Rong,Deng, Jianliao,&Lin, Jinda.(2017).Measurement of mass by optical forced oscillation of absorbing particles trapped in air.J. Opt. Soc. Am. B-Opt. Phys.,34(6),1242.
MLA	Li, Yong-qing,et al."Measurement of mass by optical forced oscillation of absorbing particles trapped in air".J. Opt. Soc. Am. B-Opt. Phys. 34.6(2017):1242.