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Related Experiment Video

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Plasmonic Trapping and Release of Nanoparticles in a Monitoring Environment
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Drawing structured plasmonic field with on-chip metalens.

Yulong Wang1,2, Changjun Min1, Yuquan Zhang1

  • 1Nanophotonics Research Center, Shenzhen Key Laboratory of Micro-Scale Optical Information Technology, Shenzhen University, Shenzhen 518060, China.

Nanophotonics (Berlin, Germany)
|December 5, 2024
PubMed
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Researchers developed a simple on-chip method using plasmonic metalenses to flexibly generate structured surface plasmon polariton (SPP) fields. This breakthrough enables precise control over optical surface waves for advanced nanophotonic applications.

Area of Science:

  • Nanophotonics and Plasmonics
  • Optical Engineering
  • Surface Wave Manipulation

Background:

  • Generating structured surface plasmon polariton (SPP) fields is crucial for nanophotonic applications.
  • Existing methods often involve complex experimental setups or computationally intensive algorithms, hindering practical use.

Purpose of the Study:

  • To propose a simplified and flexible method for generating structured SPP fields.
  • To enable on-chip manipulation of optical surface waves using plasmonic metalenses.

Main Methods:

  • Utilizing on-chip plasmonic metalenses composed of independently controllable plasmonic focusing nanostructures.
  • Superposing the fields from these nanostructures to create designed SPP patterns.

Main Results:

Keywords:
bottle beamsplasmonic metalenssurface plasmon polariton

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  • Demonstrated flexible generation of various structured SPP fields.
  • Successfully created S- and W-shaped SPP focal fields.
  • Showcased tunable SPP bottle beams.

Conclusions:

  • The proposed method offers a practical approach for on-chip SPP field generation.
  • This technique opens new avenues for integrated photonic circuits and photonic information processing.