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Related Experiment Video

Updated: Jun 20, 2026

Shaping the Amplitude and Phase of Laser Beams by Using a Phase-only Spatial Light Modulator
08:39

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Published on: January 28, 2019

Electron-beam-tunable interference filter spatial light modulator.

A C Walker, S D Smith, R J Campbell

    Optics Letters
    |September 12, 2009
    PubMed
    Summary
    This summary is machine-generated.

    A novel electron-beam-tunable interference filter was developed for spatial light modulation. This device locally tunes an optothermal nonlinear filter using a scanned electron beam, enabling new display and optical data processing technologies.

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    Shaping the Amplitude and Phase of Laser Beams by Using a Phase-only Spatial Light Modulator
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    Published on: January 28, 2019

    The Generation of Higher-order Laguerre-Gauss Optical Beams for High-precision Interferometry
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    Area of Science:

    • Optoelectronics
    • Materials Science
    • Applied Physics

    Background:

    • Spatial light modulators (SLMs) are crucial for optical systems.
    • Existing SLM technologies face limitations in tunability and resolution.
    • Optothermal nonlinear effects offer potential for novel device functionalities.

    Purpose of the Study:

    • To demonstrate a new type of electron-beam-addressed spatial light modulator.
    • To explore the use of optothermal nonlinear interference filters for light modulation.
    • To investigate the feasibility of e-beam tuning for advanced optical applications.

    Main Methods:

    • Fabrication of an optothermal nonlinear interference filter.
    • Utilizing a scanned electron beam for local tuning of the filter's optical properties.
    • Characterization of the device's spatial light modulation capabilities.

    Main Results:

    • Successful demonstration of an electron-beam-addressed spatial light modulator.
    • Local tuning of the optothermal nonlinear interference filter by a scanned electron beam was achieved.
    • The device exhibited controllable spatial light modulation.

    Conclusions:

    • A novel e-beam-tunable interference filter device has been successfully demonstrated.
    • This technology offers a new approach for spatial light modulation.
    • Potential applications exist in advanced display technology and optical data processing.