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Related Concept Videos

Terahertz Microfluidic Sensing Using a Parallel-plate Waveguide Sensor07:28

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Related Experiment Video

Updated: Jan 19, 2026

Terahertz Microfluidic Sensing Using a Parallel-plate Waveguide Sensor
07:28

Terahertz Microfluidic Sensing Using a Parallel-plate Waveguide Sensor

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iBEAM: substrate-integrated hollow waveguides for efficient laser beam combining.

Julian Haas, Michael Pleyer, Josephine Nauschütz

    Optics Express
    |September 13, 2019
    PubMed
    Summary

    Researchers developed a novel beam combiner using substrate-integrated hollow waveguides (iHWGs) for multi-wavelength laser illumination. This iBEAM technology offers an efficient solution for optical sensing, particularly in the mid-infrared spectrum.

    More Related Videos

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    Shaping the Amplitude and Phase of Laser Beams by Using a Phase-only Spatial Light Modulator
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    Area of Science:

    • Optics and Photonics
    • Materials Science
    • Chemical and Biological Sensing

    Background:

    • Lasers are crucial for optical sensor technologies, emitting specific wavelengths.
    • Multi-wavelength illumination is often required for comprehensive chemical and biological sensing.
    • Conventional methods for combining laser beams can be inefficient or lack spectral brightness.

    Purpose of the Study:

    • To introduce substrate-integrated hollow waveguides (iHWGs) as a novel platform for laser beam combining.
    • To demonstrate an efficient multi-port beam combiner for multi-wavelength optical sensing applications.
    • To address the need for versatile and spectrally bright illumination in the mid-infrared region.

    Main Methods:

    • Fabrication and characterization of substrate-integrated hollow waveguides (iHWGs).
    • Design and implementation of a multi-port beam combiner utilizing iHWGs.
    • Testing the performance of the iHWG-based beam combiner for multi-wavelength laser delivery, especially in the mid-infrared (MIR) spectrum.

    Main Results:

    • Successful demonstration of substrate-integrated hollow waveguides (iHWGs) as an efficient beam combining platform.
    • Development of a highly efficient multi-port beam combiner, termed iBEAM.
    • The iBEAM system maintains spectral brightness while enabling multi-wavelength coverage, outperforming conventional methods for MIR applications.

    Conclusions:

    • Substrate-integrated hollow waveguides (iHWGs) provide a versatile and efficient solution for laser beam combining.
    • The developed iBEAM combiner is particularly advantageous for mid-infrared optical sensing requiring multi-wavelength illumination.
    • This technology offers a significant advancement for advanced chem/bio-sensing applications.