Calculating the Stark Effect (Spectral line splitting)?

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Discussion Overview

The discussion revolves around the calculation of the Stark effect, specifically in the context of oxygen atoms. Participants explore the theoretical framework and practical challenges associated with determining spectral line splitting under an electric field, particularly in high voltage environments.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested
  • Homework-related

Main Points Raised

  • One participant questions whether the equation for calculating the Stark effect is the same for every atom and seeks clarification on how to apply it to oxygen.
  • Another participant suggests that understanding the Stark effect requires a solid foundation in physics and mathematics, implying that without this background, comprehending the equations may be challenging.
  • A participant expresses a lack of knowledge in physics and seeks assistance in determining the wavelengths needed to excite oxygen atoms in a high voltage field, acknowledging the complexity of the task.
  • Some participants assert that there is no simple formula for calculating the Stark effect, emphasizing the difficulties in determining electronic levels of atoms or molecules in the presence of an electric field.
  • A model approach is referenced as a way to illustrate the complexities involved in understanding the Stark effect.

Areas of Agreement / Disagreement

Participants generally agree that calculating the Stark effect is complex and does not lend itself to a straightforward formula. However, there is disagreement regarding the availability of resources and the prerequisites needed to understand the topic fully.

Contextual Notes

Participants express varying levels of familiarity with the necessary physics and mathematics, indicating that some foundational knowledge may be required to engage with the topic effectively. There are also references to external resources, but no consensus on a specific formula or method for calculation is reached.

HMS-776
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Is the equation for calculating the Stark effect the same for every atom?

I am trying to understand how to calculate the Stark effect for Oxygen but do not understand the formula.

Can someone please explain and show me how to calculate the Stark effect?

It would be greatly appreciated!
 
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It's in practically every good textbook on quantum mechanics. There's also the wikipedia page, or the hyperphysics page.

Have you studied the prerequisite physics and math to learn this stuff? If you don't understand what the equations are supposed to mean, I'd have to think the answer to that is 'no'. In which case, why would you expect to understand it? And what would you expect people to do? Give a whole undergraduate course in physics within a forum thread?
 
Yes you're right.

I know very little physics, which is why I'm here. I am trying to determine which
wavelength(s) are needed to excite the oxygen atom to it's 4th energy level in a high voltage field containing plasma and ambient air.

The high voltage field is around 20kV. I need to first determine the V/cm. I know that the stark effect causes spectral line splitting. And the higher the e field the more splitting will be. I am just trying to determine or at least estimate what wavelengths I would need.

I know this in most cases would take more knowledge than I currently have to figure out, so I am trying to enlist the help of others.
 
Last edited:
HMS-776 said:
Is the equation for calculating the Stark effect the same for every atom?

I am trying to understand how to calculate the Stark effect for Oxygen but do not understand the formula.

Can someone please explain and show me how to calculate the Stark effect?

It would be greatly appreciated!

I am sure, you have many books or papers on the Stark effect.Now I am study the Stark effect too, but I find it is hard to find relative materials on it. Would you send some specially that one include the formula you mentioned above. Thank you.
My email dress is: wengguofeng@hotmail.com
 
There's no formula for calculating the Stark effect.

Think about it? There's no simple formula for calculating the electronic levels of an atom or molecule without an electrical field. There's not going to be one with a field. It's very difficult.

Here's an model approach, which I guess should at least show some of the difficulties involved:
http://arxiv.org/abs/physics/0402051
 
alxm said:
There's no formula for calculating the Stark effect.

Think about it? There's no simple formula for calculating the electronic levels of an atom or molecule without an electrical field. There's not going to be one with a field. It's very difficult.

Here's an model approach, which I guess should at least show some of the difficulties involved:
http://arxiv.org/abs/physics/0402051

Thank you for you indication, I will reconsider it.
 

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