The dispersion relation for electromagnetic waves travelling through a non-magnetic isotropic plasma is: w² = k²c² +w² ne(s)e² where w = - is the plasma frequency, ne (s) is the electron density as a function of position (s); e is meo the charge on an electron and m is the mass of the electron.
The dispersion relation for electromagnetic waves travelling through a non-magnetic isotropic plasma is: w² = k²c² +w² ne(s)e² where w = - is the plasma frequency, ne (s) is the electron density as a function of position (s); e is meo the charge on an electron and m is the mass of the electron.
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h) The difference in arrival time between wave-packets with centre frequencies of ω1 and ω2 is Δt. What is DM in terms of Δt ?
Transcribed Image Text:The dispersion relation for electromagnetic waves travelling through a non-magnetic isotropic plasma is:
w² = k² c² +w²/
where w =
ne(s)e²
- is the plasma frequency, ne (s) is the electron density as a function of position (s); e is
mɛo
the charge on an electron and m is the mass of the electron.
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