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Abstract : An innovative technique for generating a three dimensional holographic display using strontium barium niobate (SBN) is discussed. The resultant image is a hologram that can be viewed in real time over a wide perspective or field of view (FOV). The holographic image is free from system-induced aberrations and has a uniform, high quality over the entire FOV. The enhanced image quality results from using a phase conjugate read beam generated from a second photorefractive crystal acting as a double pumped phase conjugate mirror (DPPCM). Multiple three dimensional images have been stored in the crystal via wavelength multiplexing.
www.dtic.mil...
Originally posted by misfitofscience
So if this technology allows the end user only to see the objects on a screen, then 9/11 could have been created using holograms as some old timers have said it to be!