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Related Experiment Video

Updated: Mar 12, 2026

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Wide-angle nonmechanical beam steering using liquid lenses.

Mo Zohrabi, Robert H Cormack, Juliet T Gopinath

    Optics Express
    |November 10, 2016
    PubMed
    Summary

    This study introduces a novel nonmechanical beam steering method using tunable liquid lenses for 1D and 2D beam control. The technique achieves wide steering angles up to ±75°, with controlled beam divergence for applications in adaptive optics.

    Area of Science:

    • Adaptive Optics
    • Optical Engineering

    Background:

    • Nonmechanical beam steering is crucial for advanced optical systems.
    • Existing methods face limitations in speed, range, or complexity.

    Purpose of the Study:

    • To develop an innovative, nonmechanical beam steering technique.
    • To achieve wide-angle, continuous 1D and 2D beam steering.
    • To maintain controlled beam divergence during steering.

    Main Methods:

    • Utilized multiple tunable liquid lenses for beam manipulation.
    • Employed a system where one lens controls divergence and others act as prisms.
    • Integrated a fisheye lens to enhance scanning angles.

    Main Results:

    • Demonstrated continuous 1D beam steering with ±39° angles using two lenses.

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  • Achieved enhanced 1D steering up to ±75° with a fisheye lens.
  • Successfully implemented 2D beam steering with ±75° angles using three lenses.

    • Conclusions:

    • The proposed tunable liquid lens system offers effective nonmechanical beam steering.
    • This method provides wide steering angles and controlled divergence for optical applications.
    • The technique is adaptable for various applications including Lidar and optical communications.