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Related Experiment Videos

Metamaterial Waveguide Devices for Integrated Optics.

Tomohiro Amemiya1,2, Toru Kanazawa3, Satoshi Yamasaki4

  • 1Institute of Innovative Research (IIR), Tokyo Institute of Technology, Tokyo 152-8552, Japan. amemiya.t.ab@m.titech.ac.jp.

Materials (Basel, Switzerland)
|September 6, 2017
PubMed
Summary

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This summary is machine-generated.

Researchers demonstrate controlling magnetic permeability in optical semiconductor devices using metamaterials. This breakthrough enables tunable refractive index for advanced photonic integration and novel device functionalities.

Area of Science:

  • Photonics
  • Materials Science
  • Optoelectronics

Background:

  • Controlling magnetic permeability in optical semiconductors is crucial for advanced photonic devices.
  • Existing methods lack precise tunability at optical frequencies.
  • Indium Phosphide (InP)-based platforms are key for integrated photonics.

Purpose of the Study:

  • To demonstrate the feasibility of controlling magnetic permeability in optical semiconductor devices.
  • To develop a tunable optical modulator based on variable permeability.
  • To propose a method for extracting permittivity and permeability from experimental data.

Main Methods:

  • Combining GaInAsP/InP semiconductor waveguides with gate-controlled split ring resonator metamaterials.
  • Utilizing the magnetic interaction between metamaterials and light to alter waveguide permeability.
Keywords:
III-V semiconductorsintegrated opticsmetamaterials

Related Experiment Videos

  • Fabricating a Mach-Zehnder interferometer optical modulator operating at 1.55 μm.

    • Main Results:

    • Achieved controllable variation of magnetic permeability in GaInAsP/InP waveguides using gate voltage.
    • Demonstrated an optical modulator where permeability changes modulate light intensity.
    • Proposed and validated a method for separate extraction of permittivity and permeability.

    Conclusions:

    • Gate-controlled metamaterials enable precise magnetic permeability tuning in optical semiconductors.
    • 'Permeability engineering' offers new possibilities for light manipulation and photonic device design.
    • This approach facilitates the development of novel, functional devices for photonic integration.