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Dielectrophoresis-actuated in-plane optofluidic lens with tunability of focal length from negative to positive
Chen, Qingming1,2; Li, Tenghao1,2; Zhu, Yujiao1,2; Yu, Weixing3; Zhang, Xuming1,2
作者部门光谱成像技术实验室
2018-03-19
发表期刊OPTICS EXPRESS
ISSN1094-4087
卷号26期号:6页码:6532-6541
产权排序3
摘要This paper reports a tunable in-plane optofluidic lens by continuously tuning a silicone oil-air interface from concave to convex using the dielectrophoresis (DEP) force. Two parallel glasses are bonded firmly on two sides by NOA 81(Norland Optical Adhesive 81) spacers, forming an open microfluidic channel. An ITO (indium tin oxide) strip and another unpatterned ITO layer are deposited on two glasses as the top and bottom electrodes. Initially, a capillary concave liquid-air interface is formed at the end of the open channel. Then the DEP force is enabled to continuously deform the interface (lens) from concave to convex. In the experiment, the focal length gradually decreases from about -1 mm to infinite and then from infinite to around + 1 mm when the driving voltage is increased from 0 V to 260 V. Particularly, the longitudinal spherical aberration (LSA) is effectively suppressed to have LSA < 0.04 when the lens is operated in the focusing state. This work is the first study of in-plane tunable lenses using the DEP force and possesses special merits as compared to the other reported tunable lenses that are formed by pumping different liquids or by temperature gradient, such as wide tunability, no need for continuous supply of liquids, low power consumption (similar to 81 nJ per switching) due to the capacitor-type driving, and the use of only one type of liquid. Besides, its low aberration makes it favorable for light manipulation in microfluidic networks. (C) 2018 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
文章类型Article
WOS标题词Science & Technology ; Physical Sciences
DOI10.1364/OE.26.006532
收录类别SCI
关键词[WOS]LIQUID LENS ; WAVE-GUIDES ; WATER-PURIFICATION ; FLOW CYTOMETER ; MICROLENS ; LIGHT ; REACTORS ; DROPLET
语种英语
WOS研究方向Optics
项目资助者National Natural Science Foundation of China(61377068 ; Research Grants Council (RGC) of Hong Kong(N_PolyU505/13 ; Hong Kong Polytechnic University(G-YBPR ; 61361166004) ; PolyU 152184/15E ; 4-BCAL ; PolyU 152127/17E) ; 1-ZE14 ; 1-ZE27 ; 1-ZVGH)
WOS类目Optics
WOS记录号WOS:000427900400019
引用统计
被引频次:2[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/181661/30007
专题光谱成像技术实验室
作者单位1.Hong Kong Polytech Univ, Dept Appl Phys, Hong Kong, Hong Kong, Peoples R China
2.Hong Kong Polytech Univ, Shenzhen Res Inst, Shenzhen 518057, Peoples R China
3.Chinese Acad Sci, Xian Inst Opt & Precis Mech, Key Lab Spectral Imaging Technol, Xian 710119, Shaanxi, Peoples R China
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GB/T 7714
Chen, Qingming,Li, Tenghao,Zhu, Yujiao,et al. Dielectrophoresis-actuated in-plane optofluidic lens with tunability of focal length from negative to positive[J]. OPTICS EXPRESS,2018,26(6):6532-6541.
APA Chen, Qingming,Li, Tenghao,Zhu, Yujiao,Yu, Weixing,&Zhang, Xuming.(2018).Dielectrophoresis-actuated in-plane optofluidic lens with tunability of focal length from negative to positive.OPTICS EXPRESS,26(6),6532-6541.
MLA Chen, Qingming,et al."Dielectrophoresis-actuated in-plane optofluidic lens with tunability of focal length from negative to positive".OPTICS EXPRESS 26.6(2018):6532-6541.
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