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Possibility of a free-space hologram

Holograms are real. But they are not what sci-fi calls holograms. From a simple geometric optics standpoint we can see that in order to create the illusion of an object there must be some sort of ...
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26 views

How can an interference pattern encode both the angle of incidence and relative phase in a hologram?

For example - there are two "object" beams, both 180-degrees out of phase with the reference beam, which hit the recording plate at angles of incidence of 30-degrees and 90-degrees respectively. ...
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Conjugated-Phase Matching

I am working on imaging applications of phase-conjugation in optics, in particular phase-conjugation imaging from recorded holograms. I have found several useful sources, but I cannot find a book ...
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162 views

Whether the holographic universe of string theory prove the hypothesis of the holographic universe created by David Bohm or not?

Bohm, David (1980), Wholeness and the Implicate Order, London: Routledge, ISBN 0-7100-0971-2 As we can see from the book above, David created the hypothesis of the holopraphic universe in 1980. And ...
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36 views

Why do 3D holograms need curved lines?

I'm making a scratched hologram and I'm interested in we have to make curved lines to get a 3D image.
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193 views

3D holograms like Miku Hatsune? How do you make such things?

I am making a speech about Miku Hatsune 3D hologram, and I would like to know how they are made! I love Miku and Len...(drools) please help by explaining!
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14 views

What curved, transparent media exists for full-motion holograms?

Looking to project light either on, or through, but not from, a transparent medium. So I'm thinking of half a hollow sphere with a surface thickness of 1/10th the radius of sphere. A clear curved ...
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89 views

Why do I get different colours in scratched holograms?

I was making a scratched holograms and in result got different colours instead of white hologram
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135 views

How to convert a hologram into an image?

Suppose one knows in full detail the phase and intensity of monochromatic light in a plane. This is basically what a hologram records, at least for some section of a plane. By using this as the ...