What is virtual energy level ?

What is "virtual energy level"?

What is "virtual energy level"?
 

alxm

Science Advisor
1,840
7
Re: What is "virtual energy level"?

In the context of http://en.wikipedia.org/wiki/Rayleigh_scattering" [Broken] scattering, the effect can be viewed as photon absorption giving excitation to a non-existent ('virtual') energy level, followed by immediate re-emission of a photon and return to the same (Rayleigh) or another (Raman) state.

Contrast this to http://en.wikipedia.org/wiki/Fluorescence" [Broken], which occurs between real energy states.
 
Last edited by a moderator:

The Physics Forums Way

We Value Quality
• Topics based on mainstream science
• Proper English grammar and spelling
We Value Civility
• Positive and compassionate attitudes
• Patience while debating
We Value Productivity
• Disciplined to remain on-topic
• Recognition of own weaknesses
• Solo and co-op problem solving

Members online

Top