Search
Menu

Sensor Could Make 3D Holograms a Feature in Mobile Devices

Facebook X LinkedIn Email
SEOUL, South Korea, Jan. 17, 2022 — Researchers at the Korea Institute of Science and Technology (KIST) and Yonsei University are laying the groundwork for 3D digital holography on mobile devices. The group designed a photodiode that detects the polarization of light in the near-infrared region without the need for additional filters. Using this device, the researchers demonstrated miniaturized holographic image sensors for 3D digital holograms. Further research could lead to the miniaturization of the entire holographic camera sensor module — a step that the researchers say opens the possibility of displaying 3D...Read full article

Related content from Photonics Media



    Articles


    Products


    Photonics Handbook Articles


    White Papers


    Webinars


    Photonics Dictionary Terms


    Media


    Photonics Buyers' Guide Categories


    Companies
    Published: January 2022
    Glossary
    holography
    The optical recording of the object wave formed by the resulting interference pattern of two mutually coherent component light beams. In the holographic process, a coherent beam first is split into two component beams, one of which irradiates the object, the second of which irradiates a recording medium. The diffraction or scattering of the first wave by the object forms the object wave that proceeds to and interferes with the second coherent beam, or reference wave at the medium. The resulting...
    photodiode
    A two-electrode, radiation-sensitive junction formed in a semiconductor material in which the reverse current varies with illumination. Photodiodes are used for the detection of optical power and for the conversion of optical power to electrical power. See avalanche photodiode; PIN photodiode.
    optical filters
    An optical filter is a device that selectively transmits or blocks specific wavelengths, or colors, of light. Optical filters are used to control the spectral content of light in various applications, allowing certain wavelengths to pass through while attenuating or blocking others. They play a crucial role in scientific, industrial, and consumer optical systems, influencing aspects such as color rendering, image quality, and spectral analysis. Key features and principles of optical filters...
    polarization
    With respect to light radiation, the restriction of the vibrations of the magnetic or electric field vector to a single plane. In a beam of electromagnetic radiation, the polarization direction is the direction of the electric field vector (with no distinction between positive and negative as the field oscillates back and forth). The polarization vector is always in the plane at right angles to the beam direction. Near some given stationary point in space the polarization direction in the beam...
    ImagingOpticsholographymobile devicescamerasResearch & TechnologyeducationAsia PacificKISTYonsei Universityphotodiodeoptical filterspolarizationnight visionSensors & Detectorssensorsoptical diode sensor

    We use cookies to improve user experience and analyze our website traffic as stated in our Privacy Policy. By using this website, you agree to the use of cookies unless you have disabled them.