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Related Concept Videos

Color Vision01:24

Color Vision

990
Color perception begins in the retina, the light-sensitive layer at the back of the eye. Two main theories explain how colors are seen: the trichromatic theory and the opponent-process theory. The trichromatic theory, proposed by Thomas Young in 1802 and extended by Hermann von Helmholtz in 1852, suggests that color vision is based on three types of cone receptors in the retina. These cones are sensitive to different but overlapping ranges of wavelengths corresponding to red, blue, and green.
990

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Dynamic reflective color pixels based on molybdenum oxide.

G Santos, F Gonzalez, D Ortiz

    Optics Express
    |July 16, 2021
    PubMed
    Summary
    This summary is machine-generated.

    Phase Change Materials (PCM) enable reconfigurable plasmonic platforms for tunable color devices. This study introduces asymmetric Fabry-Perot cavities using molybdenum oxide for switchable reflective pixels controlled by stoichiometry.

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    Area of Science:

    • Plasmonics
    • Materials Science
    • Optoelectronics

    Background:

    • Phase Change Materials (PCM) are crucial for reconfigurable plasmonic devices.
    • Tunable color reflective displays, often based on asymmetric Fabry-Perot cavities (AFPCs), are gaining importance.
    • Existing AFPCs typically produce static colors, limiting their dynamic applications.

    Purpose of the Study:

    • To develop switchable on/off color reflective pixels using AFPCs.
    • To investigate the use of molybdenum oxide (MoOx) as an active layer in AFPCs for dynamic color control.

    Main Methods:

    • Fabrication of asymmetric Fabry-Perot cavities (AFPCs).
    • Incorporation of molybdenum oxide (MoOx, 2
    • Modulation of pixel states via control of MoOx stoichiometry.

    Main Results:

    • Demonstration of switchable reflective pixels.
    • Achieved on/off states controlled by the stoichiometry of the MoOx layer.
    • Successful integration of PCM principles into AFPC for tunable color.

    Conclusions:

    • Molybdenum oxide based AFPCs offer a promising route to dynamic color reflective displays.
    • Stoichiometric control of MoOx provides an effective mechanism for switching pixel states.
    • This work advances the development of reconfigurable plasmonic platforms for tunable color applications.