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Characterization of SiN Integrated Optical Phased Arrays on a Wafer-Scale Test Station
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Multifunctional optofluidic lens with beam steering.

Chao Liu, Di Wang, Qiong-Hua Wang

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    Summary
    This summary is machine-generated.

    This study presents a multifunctional optofluidic lens using electrowetting for adjustable zoom and beam steering. This novel device integrates liquid lens and prism chambers for versatile optical control.

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    Area of Science:

    • Optofluidics
    • Optical Engineering
    • Microfluidics

    Background:

    • Traditional optical systems often require bulky mechanical components for zoom and beam steering.
    • Electrowetting offers a voltage-controlled method for manipulating liquid interfaces, enabling tunable optics.

    Purpose of the Study:

    • To develop and demonstrate a multifunctional optofluidic (MO) lens with integrated zoom and beam steering capabilities.
    • To investigate the performance of an MO lens actuated by the electrowetting effect.

    Main Methods:

    • A stacked liquid lens chamber and liquid prism chamber design was employed.
    • Electrowetting actuation was used to control the liquid-liquid interface curvature for focal length tuning.
    • A navigation sheet within the liquid prism chamber was tilted via electrowetting to achieve beam steering.

    Main Results:

    • The MO lens demonstrated tunable focal lengths ranging from -180 mm to -∞ and +∞ to 161 mm.
    • A maximum beam tilt angle of 22.8° was achieved by applying voltage.
    • High beam quality was maintained during steering adjustments.

    Conclusions:

    • The developed MO lens successfully integrates zoom and beam steering functions.
    • Electrowetting actuation provides an effective mechanism for precise optical control in the MO lens.
    • Potential applications include zoom imaging, laser detection, and lighting systems.