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Updated: Jun 12, 2026

Shaping the Amplitude and Phase of Laser Beams by Using a Phase-only Spatial Light Modulator
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Optically addressed spatial light modulators by MBE-grown nipi MQW structures.

J Maserjian, P O Andersson, B R Hancock

    Applied Optics
    |June 18, 2010
    PubMed
    Summary
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    See all related articles

    Researchers explored novel optically addressed spatial light modulators (O-SLMs) using quantum well structures. Experiments demonstrated significant optical control over absorption, paving the way for advanced O-SLM devices.

    Area of Science:

    • Optoelectronics
    • Semiconductor Physics
    • Materials Science

    Background:

    • Optically addressed spatial light modulators (O-SLMs) are crucial for optical information processing.
    • Existing O-SLM technologies face limitations in performance and scalability.
    • Combining nipi and multiple quantum well structures offers a promising avenue for improved O-SLMs.

    Purpose of the Study:

    • To investigate the theoretical and experimental aspects of photooptic effects in novel nipi and multiple quantum well structures.
    • To assess the feasibility of these structures for developing advanced optically addressed spatial light modulators.
    • To evaluate key performance metrics such as modulation depth, response time, and control signal dependence.

    Main Methods:

    • Theoretical modeling of photooptic effects in combined nipi and multiple quantum well structures.

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    Last Updated: Jun 12, 2026

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

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

    Published on: January 28, 2019

    Characterization of SiN Integrated Optical Phased Arrays on a Wafer-Scale Test Station
    05:57

    Characterization of SiN Integrated Optical Phased Arrays on a Wafer-Scale Test Station

    Published on: April 1, 2020

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    Free-form Light Actuators — Fabrication and Control of Actuation in Microscopic Scale

    Published on: May 25, 2016

  • Growth of test structures using molecular beam epitaxy (MBE) with (In,Ga)As/GaAs and (Al,Ga)As/GaAs material systems.
  • Experimental characterization of optical modulation of absorption coefficient and response times.

    • Main Results:

    • Demonstrated large optically controlled modulation of absorption coefficient (approx. 10^4 cm^-1) in quantum well layers.
    • Observed a logarithmic power dependence of modulation on the control signal.
    • Achieved millisecond and shorter time responses for the photooptic effect.
    • Confirmed generally predictable behavior of the fabricated test structures.

    Conclusions:

    • The investigated nipi and multiple quantum well structures show significant promise for realizing high-performance optically addressed spatial light modulators.
    • The demonstrated photooptic effects and material properties are encouraging for several proposed O-SLM device designs.
    • This work provides a strong foundation for the further development of advanced O-SLM technologies.