3-dimensional dark traps for low refractive index bio-cells using a single optical fiber Bessel beam

被引：26

作者：

Zhang, Yu ^{[1
]}

Tang, Xiaoyun ^{[1
]}

Zhang, Yaxun ^{[1
]}

Su, Wenjie ^{[1
]}

Liu, Zhihai ^{[1
,2
]}

Yang, Xinghua ^{[1
]}

Zhang, Jianzhong ^{[1
]}

Yang, Jun ^{[1
]}

Oh, Kyunghwan ^{[3
]}

Yuan, Libo ^{[1
,4
]}

机构：

[1] Harbin Engn Univ, Key Lab In Fiber Integrated Opt, Minist Educ China, Harbin 150001, Heilongjiang, Peoples R China

[2] Harbin Engn Univ, Natl Demonstrat Ctr Expt Phys Educ, Harbin 150001, Heilongjiang, Peoples R China

[3] Yonsei Univ, Coll Sci, Dept Phys, Seoul 03722, South Korea

[4] Guilin Univ Elect Technol, Photon Res Ctr, Guilin 541004, Peoples R China

来源：

OPTICS LETTERS | 2018年 / 43卷 / 12期

基金：

中国国家自然科学基金;

关键词：

ORBITAL ANGULAR-MOMENTUM; DIELECTRIC PARTICLES; VORTEX; LIGHT; MICROPARTICLES; MANIPULATION; DELIVERY;

D O I：

10.1364/OL.43.002784

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We proposed and experimentally demonstrated 3-dimensional dark traps for low refractive index bio-cells using a single optical fiber Bessel beam. The Bessel beam was produced by concatenating single-mode fiber and a step index multimode fiber, which was then focused by a high refractive index glass microsphere integrated on the fiber end facet. The focused Bessel beam provided two dark fields along the axial direction, where stable trapping of low refractive index bio-cells was realized in a high refractive index liquid bath. The all-fiber and seamlessly integrated structure of the proposed scheme can find ample potential as a micro-optical probe in in situ characterization and manipulation of multiple bio-cells with refractive indices lower than that of the liquid bath. (C) 2018 Optical Society of America

引用

页码：2784 / 2786

页数：3

共 21 条

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