Difference between revisions of "Faraday rotation"

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\section{Overview}
 
\section{Overview}
When a polarized electromagnetic wave propagates through a magnetized plasma, the polarization angle rotates due to different group velocities for each polarization state. The polarization angle rotates by an amount
+
When a polarized electromagnetic wave propagates through a magnetized plasma, the plane of polarization rotates due to different group velocities for right- and left-hand polarizations. The polarization angle rotates by an amount
 
\begin{align}
 
\begin{align}
\theta = \lambda^2\mathcal{RM}
+
\Delta\theta &= \frac{2\pi e^3}{m_e^2c^2\omega^2}\int_0^d n_eB_{||}\,ds \\
 +
&=\lambda^2\mathcal{RM}
 
\end{align}
 
\end{align}
 
where
 
where
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\mathcal{RM}=\frac{e^3}{2\pi m_e^2 c^4}\int_0^d n_eB_{||}\,ds
 
\mathcal{RM}=\frac{e^3}{2\pi m_e^2 c^4}\int_0^d n_eB_{||}\,ds
 
\end{align}
 
\end{align}
is the \textit{rotation measure}.
+
is the \textit{rotation measure}. This process is called Faraday rotation.
  
 
\end{document}
 
\end{document}
 
</latex>
 
</latex>

Revision as of 19:20, 14 December 2016

Short Topical Videos

Reference Material

Faraday Rotation

1 Overview

When a polarized electromagnetic wave propagates through a magnetized plasma, the plane of polarization rotates due to different group velocities for right- and left-hand polarizations. The polarization angle rotates by an amount

where

is the rotation measure. This process is called Faraday rotation.