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  11. Morphologically Switchable Twin Photonic Hooks

Morphologically Switchable Twin Photonic Hooks

Zejie Shi1, Kaihua Wei1, Pinghui Wu2

  • 1Key Laboratory of Micro-Nano Sensing and IoT of Wenzhou, Wenzhou Institute of Hangzhou Dianzi University, Wenzhou 325038, China.

Materials (Basel, Switzerland)
|October 16, 2024

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View abstract on PubMed

Summary
This summary is machine-generated.

Researchers created twin photonic hooks (t-PHs) using a fan-shaped structure with silver films. This design allows control over hook shapes and bending angles for nanolithography and integrated optics applications.

Area of Science:

  • Photonics
  • Nanotechnology
  • Optics

Background:

  • Photonic hooks (PHs) are self-accelerating light trajectories.
  • Controlling PH morphology is crucial for advanced optical applications.

Purpose of the Study:

  • To investigate a dual fan-shaped structure for generating tunable twin photonic hooks (t-PHs).
  • To explore the influence of structural parameters on t-PH characteristics.

Main Methods:

  • Utilized the Finite-Difference Time-Domain (FDTD) method for numerical simulations.
  • Designed and analyzed a dual fan-shaped structure coated with silver (Ag) films.

Main Results:

  • Achieved switching between t-PHs, S-shaped t-PHs, and W-shaped t-PHs by adjusting fan-shaped opening and Ag film angles.
Keywords:
FDTDbending anglefull width at half maximum (FWHM)twin photonic hooks

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  • Demonstrated control over bending angles, with maximum angles of 51.3°, 36.4°, and 41.8° for W-shaped t-PHs at a 5° Ag film angle.
  • Confirmed the tunability of t-PH morphology through structural design.

    • Conclusions:

    • The dual fan-shaped Ag-film-covered structure offers a method for generating and controlling t-PHs.
    • Tunable morphology t-PHs have potential for innovative applications in nanolithography and integrated optics.