What is meaning of w in plasma permitivity,exactly?

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The discussion centers on the meaning of the parameter "ω" in the context of plasma permittivity, specifically within the formula εr = 1 - [ωp² / ω(ω - jv)]. Here, "ω" represents the radio frequency (RF) feed frequency of the plasma or the incident wave frequency interacting with the plasma medium. Participants clarify that "ω" pertains to the frequency of the electromagnetic field, which is crucial for understanding the dielectric constant's behavior in plasma environments.

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ghasem007
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Hi.
I have a problem.
as you know,in a plasma medium(such as cylindrical tube),we have:

εr = 1- [ ωp^2 / ω*(ω - jv) ]

that : v = collision frequency
ωp = plasma frequency
but I don't know meaning of " ω " ,exactly.
ω is RF feed frequency of plasma or incident wave frequency to plasma?
I read several book and I know what is plasma,but " ω " parameter confused me...
is there anyone who direct me?
best wishes...
 
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It is the frequency of the electromagnetic field.
The formula is an expression of the dielectric constant as a function of frequency.
 
yes,I know that this is EM wave frequency.but which EM wave?
it is related to incident wave to plasma,or feeding frequency in surface wave plasma?
 

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