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Related Experiment Video

Updated: Apr 22, 2026

Measurement of Quantum Interference in a Silicon Ring Resonator Photon Source
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Phase change material based tunable reflectarray for free-space optical inter/intra chip interconnects.

Longfang Zou, Martin Cryan, Maciej Klemm

    Optics Express
    |October 17, 2014
    PubMed
    Summary

    Phase change material (PCM) optical antennas enable dynamic beam steering for optical interconnects. This technology allows for adaptable optical links by altering antenna properties between amorphous and crystalline states.

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    Area of Science:

    • Photonics and Optical Engineering
    • Materials Science
    • Optical Communications

    Background:

    • Dynamic beam shaping and steering are crucial for advanced free-space optical interconnects.
    • Phase change materials (PCMs) offer tunable optical properties based on their state (amorphous/crystalline).

    Purpose of the Study:

    • To propose and investigate the concept of PCM-based optical antennas and antenna arrays.
    • To demonstrate dynamic beam steering for optical switching and routing applications.

    Main Methods:

    • Engineering optical antennas and arrays using phase change materials.
    • Designing a PCM-based tunable reflectarray for a dynamic optical link scenario.
    • Utilizing two antenna types for wavefront control and numerical studies at 1.55 μm.

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    Last Updated: Apr 22, 2026

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    Characterization of SiN Integrated Optical Phased Arrays on a Wafer-Scale Test Station
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    Main Results:

    • A PCM-based tunable reflectarray successfully switched an optical link between two receivers.
    • Binary beam steering was numerically demonstrated at an optical communication wavelength of 1.55 μm.
    • The study validated the feasibility of dynamic optical links using PCM optical antennas.

    Conclusions:

    • PCM-based optical antennas and antenna arrays represent a novel approach for dynamic optical switching and routing.
    • This research opens a new avenue for developing reconfigurable optical interconnects.
    • The proposed concept holds potential for future high-performance optical communication systems.