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## Electromagnetic electron waveAn In an unmagnetized plasma, an electromagnetic electron wave is simply a light wave modified by the plasma. In a magnetized plasma, there are two modes perpendicular to the field, the O and X modes, and two modes parallel to the field, the R and L waves. ## Additional recommended knowledge
## Cut-off frequency and critical densityIn an unmagnetized plasma in the high frequency or low density limit, i.e. for ω > > (4π - .
If the critical density is exceeded, the plasma is called In a magnetized plasma, except for the O wave, the cut-off relationships are more complex. ## O waveThe ## X waveThe ## R wave and L waveThe ## Dispersion relationsThe dispersion relation can be written as an expression for the frequency (squared), but it is also common to write it as an expression for the index of refraction
## See also |
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This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Electromagnetic_electron_wave". A list of authors is available in Wikipedia. |