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Ballistic supercavitating nanoparticles driven by single Gaussian beam optical pushing and pulling forces

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Listed:
  • Eungkyu Lee

    (University of Notre Dame)

  • Dezhao Huang

    (University of Notre Dame)

  • Tengfei Luo

    (University of Notre Dame
    University of Notre Dame
    University of Notre Dame)

Abstract

Directed high-speed motion of nanoscale objects in fluids can have a wide range of applications like molecular machinery, nano robotics, and material assembly. Here, we report ballistic plasmonic Au nanoparticle (NP) swimmers with unprecedented speeds (~336,000 μm s−1) realized by not only optical pushing but also pulling forces from a single Gaussian laser beam. Both the optical pulling and high speeds are made possible by a unique NP-laser interaction. The Au NP excited by the laser at the surface plasmon resonance peak can generate a nanoscale bubble, which can encapsulate the NP (i.e., supercavitation) to create a virtually frictionless environment for it to move, like the Leidenfrost effect. Certain NP-in-bubble configurations can lead to the optical pulling of NP against the photon stream. The demonstrated ultra-fast, light-driven NP movement may benefit a wide range of nano- and bio-applications and provide new insights to the field of optical pulling force.

Suggested Citation

  • Eungkyu Lee & Dezhao Huang & Tengfei Luo, 2020. "Ballistic supercavitating nanoparticles driven by single Gaussian beam optical pushing and pulling forces," Nature Communications, Nature, vol. 11(1), pages 1-8, December.
    • Handle: RePEc:nat:natcom:v:11:y:2020:i:1:d:10.1038_s41467-020-16267-9
    DOI: 10.1038/s41467-020-16267-9
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    Cited by:

    1. Man Hu & Feng Wang & Li Chen & Peng Huo & Yuqi Li & Xi Gu & Kai Leong Chong & Daosheng Deng, 2022. "Near-infrared-laser-navigated dancing bubble within water via a thermally conductive interface," Nature Communications, Nature, vol. 13(1), pages 1-8, December.

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