Researchers at the University of Arizona's College of Optical Sciences, US, and Nitto Denko Technical Corp., worked jointly, to create a rewritable holographic display that can enable 3D holographic film. Researchers demonstrated that holographic materials need to satisfy certain requirements, to be used for 3D rewritable 3D displays. These requirements, include high diffraction efficiency, high sensitivity, reversible recording, high spatial resolution, large area, fast recording, and long storage time. The rewritable 3D display features a total horizontal viewing angle of 45° and a vertical view zone of about 15°, with uniform brightness. It is observed that the hologram is viewable for up to three hours on the photorefractive sample, without the need for immediate projection tools, or magnification between the recorded image and the imager of the display.
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Atomic and Molecular Physics, and Optics
- Condensed Matter Physics
- Electrical and Electronic Engineering