Will My Hologram Be Fully 3-Dimensional?

  • Thread starter Thread starter z-component
  • Start date Start date
  • Tags Tags
    Hologram
AI Thread Summary
A hologram created with a HeNe laser can achieve a 3-dimensional appearance if constructed properly, using photographic film exposed to two laser wavefronts. The coherence length of the laser is crucial for successful hologram creation, as it affects the quality of the image. After development, the hologram can be viewed with the original laser to reveal its 3-D qualities. However, users may notice that the final hologram is often scaled down in size. The scaling issue may be influenced by the optical components used, such as lenses or mirrors.
z-component
Messages
494
Reaction score
2
I am constructing a hologram device for a school project. The hologram will be made with a HeNe laser, but what can I expect it to actually look like? If constructed correctly, will the hologram be fully 3-dimensional like the original object? I can't find any good pictures of an actual demonstration online.
 
Physics news on Phys.org
I don't know if it will be of help, but try to find a copy of the Holography Handbook.

http://www.rossbooks.com/HH/hh.html

It has many practical suggestions for making your own holograms. I found the coherence length comments about the source laser to be especially important (and that alone kept me from making any holograms with my dumpy HeNe laser). When you make a hologram, you are exposing photographic film (no lenses) to two incident laser wavefronts, one directly from the source laser, and another that is split off and reflecting off the subject. After you develop the photographic film (and maybe do some more processing?), you can use the original source laser to view the image on the film, and it appears to have 3-D qualities.
 
Last edited by a moderator:
Thanks, I checked out that site and it's a nice resource. It appears that the hologram is scaled down in size. Which aspect of the construction (i.e. the lenses or mirrors) causes this scaling?
 
I think it's easist first to watch a short vidio clip I find these videos very relaxing to watch .. I got to thinking is this being done in the most efficient way? The sand has to be suspended in the water to move it to the outlet ... The faster the water , the more turbulance and the sand stays suspended, so it seems to me the rule of thumb is the hose be aimed towards the outlet at all times .. Many times the workers hit the sand directly which will greatly reduce the water...

Similar threads

Replies
2
Views
3K
Replies
1
Views
2K
Replies
4
Views
2K
Replies
1
Views
10K
Replies
28
Views
4K
Replies
7
Views
4K
Replies
42
Views
1K
Back
Top