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Rotation of an optically trapped vaterite microsphere measured using rotational Doppler effect
Chen, Xinlin1; Xiao, Guangzong1,2; Xiong, Wei1; Yang, Kaiyong1; Luo, Hui1; Yao, Baoli2; Xiao, Guangzong (xiaoguangzong@nudt.edu.cn)
作者部门瞬态光学技术国家重点实验室
2018-03-01
发表期刊OPTICAL ENGINEERING
ISSN0091-3286
卷号57期号:3
产权排序2
摘要

The angular velocity of a vaterite microsphere spinning in the optical trap is measured using rotational Doppler effect. The perfectly spherical vaterite microspheres are synthesized via coprecipitation in the presence of silk fibroin nanospheres. When trapped by a circularly polarized beam, the vaterite microsphere is uniformly rotated in the trap center. The probe beams containing two Laguerre-Gaussian beams of opposite topological charge l = +/- 7, l = +/- 8, and l = +/- 9 are illuminated on the spinning vaterite. By analyzing the backscattered light, a frequency shift is observed scaling with the rotation rate of the vaterite microsphere. The multiplicative enhancement of the frequency shift proportion to the topological charge has greatly improved the measurement precision. The reliability and practicability of this approach are verified through varying the topological charge of the probe beam and the trapping laser power. In consideration of the excellent measurement precision of the rotation frequency, this technique might be generally applicable in studying the torsional properties of micro-objects. (c) The Authors. Published by SPIE under a Creative Commons Attribution 3.0 Unported License.

文章类型Article
关键词Laser Doppler Velocimetry Optical Tweezers Or Optical Manipulation Backscattering Optical Sensing And Sensors
WOS标题词Science & Technology ; Physical Sciences
DOI10.1117/1.OE.57.3.036103
收录类别SCI ; EI
关键词[WOS]ORBITAL ANGULAR-MOMENTUM ; FREQUENCY-SHIFT ; FLOW ; VIBROMETRY ; ROTOR ; LIGHT
语种英语
WOS研究方向Optics
项目资助者Hunan Provincial Natural Science Foundation of China(2017JJ3363) ; Open Research Fund of State Key Laboratory of Transient Optics and Photonics, Chinese Academy of Sciences(SKLST201507)
WOS类目Optics
WOS记录号WOS:000429265500034
EI入藏号20181104912630
引用统计
被引频次:13[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.opt.ac.cn/handle/181661/29995
专题瞬态光学研究室
通讯作者Xiao, Guangzong (xiaoguangzong@nudt.edu.cn)
作者单位1.Natl Univ Def Technol, Coll Optoelect Sci & Engn, Changsha, Hunan, Peoples R China
2.Chinese Acad Sci, State Key Lab Transient Opt & Photon, Xian, Shaanxi, Peoples R China
推荐引用方式
GB/T 7714
Chen, Xinlin,Xiao, Guangzong,Xiong, Wei,et al. Rotation of an optically trapped vaterite microsphere measured using rotational Doppler effect[J]. OPTICAL ENGINEERING,2018,57(3).
APA Chen, Xinlin.,Xiao, Guangzong.,Xiong, Wei.,Yang, Kaiyong.,Luo, Hui.,...&Xiao, Guangzong .(2018).Rotation of an optically trapped vaterite microsphere measured using rotational Doppler effect.OPTICAL ENGINEERING,57(3).
MLA Chen, Xinlin,et al."Rotation of an optically trapped vaterite microsphere measured using rotational Doppler effect".OPTICAL ENGINEERING 57.3(2018).
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