Photons in a medium

[insane_alien]

he never said there was a dependence on the number of photons.

[Bob_for_short]

he never said there was a dependence on the number of photons.

 

Me neither.

 

Well, I am disappointed and tired. I quit this conversation.

 

Cheers.

[insane_alien]

then why did you bring it up in your response?

[Klaynos]

 

If the light propagation depended on number of photons, it would be a non-linear effect. It exists indeed but at very high intensities. So the linear, usual theory of light propagation is valid for any number of photons, even for one.

 

The explanation not the overall effect. Interestingly though non-linear effects with light propagating through media is quite common, [math]\chi^{(2)}[/math] and [math]\chi^{(3)}[/math] happen in most materials with a measurable effect if you use high enough intensities.

[swansont]

Shame on you.

 

This commentary is inappropriate

 

Again' date=' speaking of absorption and re-emission as a reason for delay is wrong and it is you burden to learn when you were told so.[/quote']

 

Asking for references to back up claims is a proper request