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Improving the trapping capability using radially polarized narrow-width annular beam

文献类型：期刊论文

作者Xu, Hua-Feng1,2; Zhang, Wei-Jun1,2; Qu, Jun3; Huang, Wei1,2
刊名JOURNAL OF MODERN OPTICS
出版日期2016
卷号63期号:5页码:495-500
关键词Optical Tweezers Optical Trapping Force Trap Stiffness Radially Polarized Narrow-width Annular Beam
DOI10.1080/09500340.2014.922634
文献子类Article
英文摘要A novel optical-trap method for improving the trapping capability using a radially polarized narrow-width annular beam (NWAB) has been proposed. In this paper, we theoretically study the tight focusing properties of a radially polarized NWAB, formed by subtly blocking the central portion of a radially polarized Bessel-Gaussian beam (the original doughnut beam), through a high-numerical aperture objective. It is shown that a sub-wavelength focal spot (0: 32 lambda) with a quite long depth of focus (about 3 lambda) can be formed in the vicinity of the focus. Furthermore, the optical trapping forces acting on a metallic Rayleigh particle are calculated for the case where a radially polarized annular beam is applied. Numerical results show that the radially polarized NWAB can largely enhance the transverse trap stiffness and broaden the longitudinal trap range compared with the usage of the original doughnut beam. The influence of the annular factor delta on the focusing properties and the trap stiffness is investigated in detail.
WOS关键词CYLINDRICAL-VECTOR BEAMS ; FORCE OPTICAL TRAP ; DIELECTRIC PARTICLES ; MANIPULATION ; LIGHT ; FOCUS ; SPOT
WOS研究方向Optics
语种英语
WOS记录号WOS:000369259700010
资助机构National Natural Science Foundation of China (NSFC)(21133008 ; National Natural Science Foundation of China (NSFC)(21133008 ; National Natural Science Foundation of China (NSFC)(21133008 ; National Natural Science Foundation of China (NSFC)(21133008 ; National Natural Science Foundation of China (NSFC)(21133008 ; National Natural Science Foundation of China (NSFC)(21133008 ; National Natural Science Foundation of China (NSFC)(21133008 ; National Natural Science Foundation of China (NSFC)(21133008 ; 11374015) ; 11374015) ; 11374015) ; 11374015) ; 11374015) ; 11374015) ; 11374015) ; 11374015) ; National Natural Science Foundation of China (NSFC)(21133008 ; National Natural Science Foundation of China (NSFC)(21133008 ; National Natural Science Foundation of China (NSFC)(21133008 ; National Natural Science Foundation of China (NSFC)(21133008 ; National Natural Science Foundation of China (NSFC)(21133008 ; National Natural Science Foundation of China (NSFC)(21133008 ; National Natural Science Foundation of China (NSFC)(21133008 ; National Natural Science Foundation of China (NSFC)(21133008 ; 11374015) ; 11374015) ; 11374015) ; 11374015) ; 11374015) ; 11374015) ; 11374015) ; 11374015)
源URL[http://ir.hfcas.ac.cn:8080/handle/334002/31579]  
专题合肥物质科学研究院_中科院安徽光学精密机械研究所
作者单位1.Chinese Acad Sci, Anhui Inst Opt & Fine Mech, Lab Atmospher Physicochem, Hefei, Peoples R China
2.Univ Sci & Technol China, Sch Environm Sci & Optoelect Technol, Hefei 230026, Peoples R China
3.Anhui Normal Univ, Dept Phys, Wuhu, Peoples R China
推荐引用方式
GB/T 7714		 Xu, Hua-Feng,Zhang, Wei-Jun,Qu, Jun,et al. Improving the trapping capability using radially polarized narrow-width annular beam[J]. JOURNAL OF MODERN OPTICS,2016,63(5):495-500.
APA Xu, Hua-Feng,Zhang, Wei-Jun,Qu, Jun,&Huang, Wei.(2016).Improving the trapping capability using radially polarized narrow-width annular beam.JOURNAL OF MODERN OPTICS,63(5),495-500.
MLA Xu, Hua-Feng,et al."Improving the trapping capability using radially polarized narrow-width annular beam".JOURNAL OF MODERN OPTICS 63.5(2016):495-500.

入库方式： OAI收割

来源：合肥物质科学研究院

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