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Hybrid Airy plasmons with dynamically steerable trajectories.

Rujiang Li1, Muhammad Imran2, Xiao Lin1

  • 1State Key Laboratory of Modern Optical Instrumentation, Zhejiang University, Hangzhou 310027, China. hpwang@zju.edu.cn hansomchen@zju.edu.cn.

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Summary
This summary is machine-generated.

Researchers developed hybrid Airy plasmons in the terahertz domain. These novel plasmons offer improved propagation and steerable trajectories, overcoming limitations of traditional Airy plasmons for applications in optical manipulation and signal processing.

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Area of Science:

  • Optics and Photonics
  • Materials Science
  • Nanotechnology

Background:

  • Airy plasmons possess unique properties like self-acceleration and self-healing, making them suitable for micro-object manipulation, imaging, and signal processing.
  • Existing Airy plasmons face challenges due to high energy loss and limited control over their movement, hindering practical applications.

Purpose of the Study:

  • To introduce and investigate hybrid Airy plasmons for enhanced performance in terahertz (THz) applications.
  • To overcome the limitations of dissipative loss and lack of dynamical steerability in conventional Airy plasmons.

Main Methods:

  • Fabrication of a hybrid graphene-based plasmonic waveguide.
  • Analysis of the coupling between optical and plasmonic modes within the hybrid structure.
  • Investigation of terahertz wave propagation characteristics and trajectory control.

Main Results:

  • Hybrid Airy plasmons exhibit significantly increased propagation lengths compared to traditional ones.
  • Effective transverse deflections and waveguide confinements are achieved through hybrid mode coupling.
  • Propagation trajectories are dynamically steerable by modulating the chemical potential of graphene.

Conclusions:

  • Hybrid Airy plasmons offer a promising solution for overcoming the limitations of conventional Airy plasmons.
  • These findings pave the way for advanced applications in optical tweezers, tractor beams, and non-diffracting beam technologies.
  • The dynamic steerability of hybrid Airy plasmons opens new avenues for chip-scale terahertz signal processing and manipulation.