Material for a high transmittance Prism and where to Buy

  • Context: High School 
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Discussion Overview

The discussion revolves around the selection of materials for a prism that can effectively separate sunlight into visible light, infrared light, and ultraviolet light for a science fair project. Participants explore options beyond standard glass prisms, including diffraction gratings and alternative materials.

Discussion Character

  • Exploratory, Technical explanation, Conceptual clarification, Homework-related

Main Points Raised

  • One participant is investigating the use of a glass prism but notes that regular glass absorbs infrared light, prompting a search for alternatives.
  • Another suggests looking into "diffraction grating" as a potential solution for light dispersion.
  • A participant expresses concern about energy conservation when using a diffraction grating and questions whether it would result in significant energy loss.
  • One response emphasizes the importance of the original poster taking ownership of their project and not expecting all questions to be answered by others.
  • A later reply mentions that quartz has good transmission properties for UV light, suggesting it as a possible material.

Areas of Agreement / Disagreement

Participants do not reach a consensus on the best approach to separate light, as multiple options and concerns are raised, including the use of diffraction gratings and the properties of different materials.

Contextual Notes

There are limitations regarding the assumptions about energy loss with diffraction gratings and the specific properties of materials mentioned, which are not fully explored in the discussion.

Who May Find This Useful

Individuals interested in optics, materials science, or those working on similar science fair projects may find this discussion relevant.

InventiveGuy
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I am working on a science fair project that will concentrate sunlight and then separate it into 3 sections, visible light, infrared light, and everything else (ex. UV). Each will have its own use. I was wondering how to do about the dispersion of the light. I was originally going to use a glass prism but learned that regular glass absorbs infrared.

Are there special prisms designed for more than just the visible spectrum? If so, where i could buy one?
Also any other ideas on how i could separate the light would be appreciated.
 
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You might look up "diffraction grating". That should be enough of a hint.
 
Thankyou for the quick response, i had completely overlooked diffraction gratings.

I am wanting to conserve as much of the energy as i can. If i was to use a diffraction grating, would i loose much of the energy?
 
At the risk of sounding rude, this is your project. It wouldn't be right for us to answer all of your questions.
 
Fair Enough, thankyou anways
 
Quartz has good UV transmission.
 

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