The hologram tag has no wiki summary.
1
vote
1answer
141 views
Is a holographic recorder able to capture a large full color picture? [closed]
Is it practical to attempt to build a 3D hologram generator that is full color and big enough to recreate a watermelon full size? If so, is real-time control feasible?
2
votes
1answer
74 views
Holograms? Sci Fi or future fact?
Based on how light behaves when it passes through mediums, i.e. the wavelength of light changes when it passes through mediums of different refractive indexes, wouldn't it be possible to convert ...
5
votes
5answers
1k views
Is it (theoretically) physically possible to project an image into thin air?
Is there some law of physics that strictly prohibits the projection of 2D or 3D images into thin air (such as holograms in movies) or is a solution to achieve this still up for grabs by an eventual ...
3
votes
1answer
149 views
Computer-Generated Holograms: I'm completely lost. How are they physically implemented?
I have been reading about holography, and I think I understand the general concept, but one thing that has me completely lost is how computer generated holography works in practice.
I think I get the ...
0
votes
0answers
61 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 ...
1
vote
2answers
4k views
3d holograms - How are they created?
How do 3d holograms work exactly? I read that there is a laser in use, but how are the multiple perspectives generated and how is the light trapped? in a certain area to create the effect?
...
3
votes
1answer
198 views
Can thick-film reflection holograms be used to create true mirrors?
Experimental alert: Someone may be able to answer this question experimentally simply by going to a shopping mall and finding the right piece of holographic jewelry.
My question is whether the type ...
3
votes
1answer
82 views
How does holographic voxel density scale with holographic film metrics?
I'm trying to understand how one can generate bounds on the effective number of voxels (volumetric pixels) in a hologram, or information density, provided various metrics for the two-dimensional ...
0
votes
2answers
266 views
Are holograms like in this video possible?
http://www.youtube.com/watch?feature=player_detailpage&v=jfySIeS1XZE#t=118s
If so, how are they created (roughly speaking). Earlier in the video he says that a laser scanned the surface of the ...
2
votes
0answers
34 views
Does a “reflected” hologram produce a caustic in the shape of the original object?
Imagine you make a transmission hologram, ala the standard picture. Now you take your photographic plate, and everywhere it is transparent, you put a thin reflective layer on, and everywhere it is ...
3
votes
1answer
124 views
What is relation between Holographic principle and Hologram?
What is relation between Holographic principle and Hologram?
The holographic principle is a property of quantum gravity and string theories which states that the description of a volume of space can ...
3
votes
1answer
222 views
How does a holographic object change perspective when the image is rotated?
Fundamentally i want to know: How do holograms work?
The problem with that question is that normally you will end up with pages and pages talking about:
a laser
a beam splitter
a diffuser
the ...
2
votes
1answer
316 views
How does holographic radar work?
I'm trying to figure out how the mechanics of holographic radar work.
AFAIK there is a continuous 3d transmission signal (a dome-shaped antenna?)
But because there isn't a direction or time-domain, ...
1
vote
1answer
100 views
Is it possible to create a hologram using X-Rays?
Is it possible to create a hologram using X-Rays (or other penetrating EM-waves)?
1
vote
1answer
72 views
Creating the opposite of an optical lattice
Is it possible to create periodic potentials that instead of creating a well for an atom to be trapped in, repulsed by that specific location?
If yes, can we use this as a means to make artificial ...
