Understanding Holograms: How Do They Work?

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Discussion Overview

The discussion revolves around understanding how holograms work, focusing on the underlying physics and the processes involved in creating and identifying holograms. Participants express confusion and seek clarification on the mechanisms at play in holography, including the role of molecules and light interactions.

Discussion Character

  • Exploratory
  • Conceptual clarification
  • Debate/contested

Main Points Raised

  • Some participants express a lack of understanding regarding the molecular changes in holographic film and whether new molecules are formed or electrons change states.
  • Several participants share their frustration with existing resources, indicating that they have not found satisfactory explanations of holography in layman's terms.
  • One participant suggests that the original question may pertain to the physics of holography or the chemical processes involved in developing a hologram, indicating a potential misunderstanding of the topic.
  • Another participant proposes that a hologram can be identified by shining a high-beam light through it, raising questions about visibility under different conditions.
  • A later reply summarizes a hologram as a complex diffraction grating that creates a 3D virtual image through light interference, although it remains unclear if this is an accurate representation.
  • One participant recommends consulting IEEE journals for more detailed information, suggesting that academic resources may provide clearer insights.

Areas of Agreement / Disagreement

Participants generally agree on their confusion regarding holography and the lack of clear explanations available. However, there are competing views on the specific aspects of holography being discussed, such as the physical versus chemical processes involved.

Contextual Notes

There is uncertainty regarding the specific mechanisms of holography, including the role of molecular interactions and the conditions necessary for visibility. The discussion reflects a range of interpretations and assumptions about the topic.

Who May Find This Useful

This discussion may be useful for individuals seeking a foundational understanding of holography, particularly those looking for explanations that bridge technical concepts with layman's terms.

Jay Lakoda
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I've read and watched countless educational articles/lectures/youtube vids/etc. And I still don't get it. What happens to the molecules in the holographic film to make it work? Are new molecules formed? Are electrons changing states? Or what? I don't understand how it works. Help please =/
 
Lol, idk. I just would like someone to explain how holograms work.
 
You know, I have exactly the same question. Google has been my constant companion with this, but just like with you, nothing has really been too helpful in sufficiently explaining how holography works in terms I can understand.

Hope someone out there has a really good answer to this!
 
Jay Lakoda said:
I've read and watched countless educational articles/lectures/youtube vids/etc. And I still don't get it.

It seems the OP has been there, just like me.
 
Actually it's not very clear to me what the OP intended to ask, is it how holography works in the sense of its underlying physics or how a hologram can be developed to become a transmission grating? If it's the latter, it involves certain chemical reaction, as pointed out in the second link I gave up there, and he might have gotten relevant answers if this post was made under chemistry forum.
 
I feel the same way. I have looked and looked on the internet and read ton of articles, but nobody does a good job of breaking down a Hologram in layman's terms. The main question I have, if anyone out there knows, is how to IDENTITY a Hologram. I have a feeling that we are going to need to know that in the future, and I have not found the answer yet. Hopefully someone who knows will see this thread and answer. My own elementary thought at the moment is that if you shine a high-beam light through it, it would defract on the other side. But if there's is nothing behind it, or if it's done in daylight, would you be able to see it? Anyone have any thoughts on how to recognize a a high-tech hologram?
 
So I tried reading a bit more on this, and I came to the conclusion that a hologram is a really complicated diffraction grating that causes a light source to interfere with itself to create a 3D virtual image that we see. Am I close?
 
  • #10
If you don,t get the right answer after reading/watching the articles and videos then you should read the Journals published by IEEE. I think it help you to sort out your job/problem.
 

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