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A thin hologram [1]: Section 4.1 is one where the thickness of the recording medium is much less than the spacing of the interference fringes which make up the holographic recording. The thickness of a thin hologram can be down to 60 nm by using a topological insulator material Sb 2 Te 3 thin film. [9]
A holographic recording requires a second light beam (the reference beam) to be directed onto the recording medium. A photograph can be viewed in a wide range of lighting conditions, whereas holograms can only be viewed with very specific forms of illumination. When a photograph is cut in half, each piece shows half of the scene.
Billing itself as the world’s “first holographic communications platform,” US startup Proto is beaming life-size, “3D” video into universities, hotels and medical centers.
It involves generating holographic interference patterns. A computer-generated hologram can be displayed on a dynamic holographic display, or it can be printed onto a mask or film using lithography. [1] When a hologram is printed onto a mask or film, it is then illuminated by a coherent light source to display the holographic images.
"We can think about this image like a 3D-printed object," said BYU assistant prof and lead author Daniel Smalley. Researchers create 'true' 3D holograms by trapping particles [Video] Skip to main ...
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Addressing simultaneously distinct domains of the temporal and spatial bandwidth of holograms was performed with success for angular, [8] wavelength, [9] [10] space-division, [11] polarization, [12] and sideband [13] [14] multiplexing schemes. Digital holograms can be numerically multiplexed and demultiplexed for efficient storage and transmission.
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