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Fabrication And Characterization Of Photonic Crystal Slow Light Waveguides And Cavities
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Published on: November 30, 2012

Coaxial periodic optical waveguide.

T Kawanishi, M Izutsu

    Optics Express
    |May 1, 2009
    PubMed
    Summary
    This summary is machine-generated.

    This study investigates guided modes in a coaxial periodic multi-layer dielectric waveguide. Results show field confinement in the core, with modes existing in specific wavelength bands due to the clad

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    Published on: August 5, 2013

    Area of Science:

    • Optics and Photonics
    • Materials Science

    Background:

    • Dielectric waveguides are crucial for optical communication.
    • Periodic structures offer unique light manipulation properties.
    • Understanding mode behavior in complex waveguides is essential for device design.

    Purpose of the Study:

    • To investigate guided modes in a novel coaxial periodic multi-layer dielectric waveguide structure.
    • To analyze field confinement and dispersion characteristics.
    • To explore potential applications in optical devices.

    Main Methods:

    • Utilized a matrix formula incorporating Bessel functions for analysis.
    • Investigated the behavior of guided modes within the specified waveguide geometry.
    • Analyzed dispersion curves to identify allowed wavelength bands.

    Main Results:

    • Confirmed the existence of guided modes within the dielectric waveguide.
    • Demonstrated field confinement within the optically thinner core.
    • Observed discontinuous dispersion curves, indicating mode existence in specific wavelength bands related to the clad's stop bands.

    Conclusions:

    • The coaxial periodic multi-layer dielectric waveguide supports confined guided modes.
    • Mode existence is contingent on wavelength bands corresponding to the periodic clad's stop bands.
    • Potential applications include optical filters and optical fibers for reduced nonlinear effects.