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Related Experiment Video

Updated: Jan 27, 2026

Studying Soft-matter and Biological Systems over a Wide Length-scale from Nanometer and Micrometer Sizes at the Small-angle Neutron Diffractometer KWS-2
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Lidar system with nonmechanical electrowetting-based wide-angle beam steering.

Mo Zohrabi, Wei Yang Lim, Robert H Cormack

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    Summary
    This summary is machine-generated.

    A novel adaptive electrowetting prism enables nonmechanical beam steering for light detection and ranging (lidar) systems. This technology expands the steering range to ±90°, offering a low-power, compact alternative to traditional methods.

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    Area of Science:

    • Optics and Photonics
    • Sensor Technology
    • Materials Science

    Background:

    • Conventional adaptive optics for beam steering are often bulky and power-intensive.
    • Nonmechanical beam steering offers advantages in size, power consumption, and reliability.
    • Electrowetting prisms present a promising transmissive, low-power alternative for beam manipulation.

    Purpose of the Study:

    • To demonstrate a light detection and ranging (lidar) system utilizing an adaptive electrowetting-based prism.
    • To achieve nonmechanical, wide-angle beam steering for lidar applications.
    • To amplify the steering range of an electrowetting prism for enhanced scanning capabilities.

    Main Methods:

    • Development of an adaptive electrowetting-based prism.
    • Integration of the prism into a lidar system for beam steering.
    • Implementation of a method to amplify the prism's inherent steering range.
    • Performance of a one-dimensional scan within the lidar system.

    Main Results:

    • Demonstration of a lidar system with ±90° of beam steering.
    • The electrowetting prism achieved an amplified steering range, significantly exceeding its native ±7.8°.
    • Successful implementation of nonmechanical, one-dimensional beam scanning in lidar.
    • The system offers a transmissive, low-power, and compact solution.

    Conclusions:

    • Adaptive electrowetting prisms are effective for nonmechanical beam steering in lidar systems.
    • The demonstrated amplification method significantly enhances the scanning capabilities of electrowetting prisms.
    • This technology provides a viable, efficient alternative to conventional adaptive optics for lidar beam scanning.