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Related Experiment Video

Updated: Jul 12, 2025

Shaping the Amplitude and Phase of Laser Beams by Using a Phase-only Spatial Light Modulator
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Vertical-cavity surface-emitting phase shifter.

Dhaifallah Almutairi, Karl Johnson, Alexei Smolyaninov

    Optics Express
    |October 20, 2023
    PubMed
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    This study introduces a novel 2D beam steering system for LIDAR using hybrid plasmonic phase shifters. The nanoscale design enhances field of view and suppresses side lobes for improved performance.

    Area of Science:

    • Photonics and Optical Engineering
    • Nanotechnology
    • Applied Physics

    Background:

    • 2D beam steering systems are crucial for applications like LIDAR.
    • Existing systems face limitations in field of view and side lobe control.
    • Plasmonic devices offer potential for miniaturization and enhanced optical performance.

    Purpose of the Study:

    • To propose and characterize a novel 2D beam steering system using hybrid plasmonic phase shifters.
    • To investigate a nanoscale Volatile Compound-Specific Electronic Properties (VCSEP) design for improved beam steering.
    • To achieve an expanded field of view and side lobe suppression for LIDAR applications.

    Main Methods:

    • Development of a cylindrical hybrid plasmonic phase shifter with nanoscale VCSEP.

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    Last Updated: Jul 12, 2025

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  • Integration of phase shifters into a 2D periodic array.
  • Characterization of individual VCSEP performance, including Free Spectral Range (FSR) and transmission variation.
  • Analysis of VπL for phase shift efficiency.

    • Main Results:

    • Demonstrated a nanoscale VCSEP design enabling sub-wavelength spacing.
    • Achieved an expanded field of view and effective side lobe suppression.
    • Measured a Free Spectral Range (FSR) of 53.28 ± 2.5 nm for a single VCSEP.
    • Obtained a transmission variation of 3 dB and a VπL of 0.075 V-mm.

    Conclusions:

    • The proposed hybrid plasmonic phase shifter design is suitable for 2D beam steering in LIDAR.
    • The nanoscale VCSEP configuration offers significant advantages in field of view and side lobe control.
    • The characterized performance metrics indicate the viability of this novel approach for advanced optical systems.