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    Area of Science:

    • Optoelectronics
    • Plasmonics
    • Nanophotonics

    Background:

    • Metasurfaces, arrays of subwavelength resonators, enable wavefront engineering by manipulating electromagnetic waves.
    • Integrating metasurfaces with optoelectronic platforms allows for active light manipulation.
    • Circularly polarized (CP) light interaction with metasurfaces offers unique control possibilities.

    Purpose of the Study:

    • To investigate the coupling of CP light with a rectangular metasurface.
    • To explore photocurrent-driven manipulation within a multiple-quantum-well (MQW) structure.
    • To demonstrate a novel optoelectronic device for tailored photoresponse.

    Main Methods:

    • Designing and fabricating a monolithic device integrating a phase-gradient metasurface with a mid-infrared MQW.
    • Utilizing spatially introduced phase shifts for beam deflection.
    • Investigating photocurrent modulation through controlled beam steering.

    Main Results:

    • Demonstrated efficient photocurrent modulation by controlling beam steering.
    • Achieved tailored wavefront manipulation of photoresponse.
    • Successfully integrated metasurface with MQW for advanced optoelectronic functionality.

    Conclusions:

    • Metasurface-based beam steering offers efficient photocurrent modulation.
    • This approach provides a novel perspective for designing advanced optoelectronic devices.
    • The integration of metasurfaces with MQW structures opens new avenues in light manipulation.