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Super-low-power optical trapping of a single nanoparticle

机译：单个纳米粒子的超低功率光学诱捕

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摘要

We propose and demonstrate a simple approach for noncontact, three-dimensional, and stable trapping of a single nanoparticle with a super-low incident laser power (0.7 mW) via the single-fiber optical tweezers. We splice a section of single-mode fiber and a section of multimode fiber to construct a Bessel-like beam, which produces narrow output laser beams. We integrate a high-refractive-index glass microsphere on the tip of the multimode fiber to focus the narrow output laser beams. The focused beams provide a nanoscale optical trap for a single nanoparticle (polystyrene sphere, diameter of 200 nm). This optical fiber probe has the advantages of high laser transmission efficiency, high spatial resolution, and minimum joule heating. The proposed approach extends the application potential of fiber-based optical manipulations, such as nanoparticle sorting, single-cell organelle analysis, and bio-sensing. (C) 2019 Optical Society of America
机译：我们提出并展示了通过单纤维光学镊子的超低入射激光功率（0.7mW）的单一纳米颗粒的非接触式，三维和稳定捕获的简单方法。 我们剪切一段单模光纤和一段多模光纤以构造贝塞尔状光束，其产生窄输出激光束。 我们在多模光纤尖端上集成了高折射率玻璃微球，聚焦窄输出激光束。 聚焦光束为单个纳米颗粒（聚苯乙烯球，直径为200nm）提供纳米级光学捕集器。 该光纤探头具有高激光传输效率，空间分辨率高的优点，以及最小焦耳加热。 所提出的方法延长了基于纤维的光学操纵的应用潜力，例如纳米粒子分选，单细胞细胞器分析和生物传感。 （c）2019年光学学会

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  • 来源
    《Optics Letters》 |2019年第21期|共4页
  • 作者

    Tang Xiaoyun; Zhang Yu; Su Wenjie; Zhang Yaxun; Liu Zhihai; Yang Xinghua; Zhang Jianzhong; Yang Jun; Yuan Libo;

  • 作者单位

    Harbin Engn Univ Key Lab In Fiber Integrated Opt Minist Educ China Harbin 150001 Heilongjiang Peoples R China;

    Harbin Engn Univ Key Lab In Fiber Integrated Opt Minist Educ China Harbin 150001 Heilongjiang Peoples R China;

    Harbin Engn Univ Key Lab In Fiber Integrated Opt Minist Educ China Harbin 150001 Heilongjiang Peoples R China;

    Harbin Engn Univ Key Lab In Fiber Integrated Opt Minist Educ China Harbin 150001 Heilongjiang Peoples R China;

    Harbin Engn Univ Key Lab In Fiber Integrated Opt Minist Educ China Harbin 150001 Heilongjiang Peoples R China;

    Harbin Engn Univ Key Lab In Fiber Integrated Opt Minist Educ China Harbin 150001 Heilongjiang Peoples R China;

    Harbin Engn Univ Key Lab In Fiber Integrated Opt Minist Educ China Harbin 150001 Heilongjiang Peoples R China;

    Harbin Engn Univ Key Lab In Fiber Integrated Opt Minist Educ China Harbin 150001 Heilongjiang Peoples R China;

    Harbin Engn Univ Key Lab In Fiber Integrated Opt Minist Educ China Harbin 150001 Heilongjiang Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 计量学;光学;
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