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Related Experiment Video

Updated: Jun 12, 2026

Fabrication And Characterization Of Photonic Crystal Slow Light Waveguides And Cavities
11:08

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Published on: November 30, 2012

Polyimide optical waveguides fabricated with electron beam lithography.

M J Rooks, H V Roussell, L M Johnson

    Applied Optics
    |June 26, 2010
    PubMed
    Summary

    Electron beam lithography enables the fabrication of polyimide waveguides with smooth sidewalls. This method allows for the production of narrow, low-loss optical waveguides on planar substrates.

    Area of Science:

    • Materials Science
    • Optoelectronics
    • Nanofabrication

    Background:

    • Optical waveguides are essential components in integrated photonics.
    • Traditional fabrication methods can result in rough sidewalls, increasing signal loss.
    • Polymer-based waveguides offer flexibility and cost-effectiveness.

    Purpose of the Study:

    • To develop a fabrication technique for high-performance polymer optical waveguides.
    • To investigate the impact of sidewall smoothness on waveguide performance.
    • To enable the production of narrow, low-loss waveguides on planar substrates.

    Main Methods:

    • Fabrication of poly(methyl methacrylate) (PMMA) clad polyimide waveguides.
    • Utilizing electron beam lithography for high-resolution patterning.

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  • Characterization of waveguide sidewall smoothness and optical loss.

    • Main Results:

    • Electron beam lithography produced exceptionally smooth sidewalls on the waveguides.
    • The smooth sidewalls facilitated the creation of narrow waveguides.
    • Low optical loss was achieved in the fabricated waveguides.

    Conclusions:

    • Electron beam lithography is a viable method for fabricating high-quality polymer waveguides.
    • Smooth sidewalls are critical for achieving low loss in narrow waveguides.
    • This technique supports the development of advanced integrated photonic devices.