$\begin{figure} \par\includegraphics[width=7cm,clip]{8733f1.eps}\end{figure}$ Figure 1: Time development of B_x at a) $\omega _{\rm pe}t = 750$ , b) $\omega _{\rm pe}t = 1000$ and c) $\omega _{\rm pe}t = 1200$ .
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In the text

$\begin{figure} \par\includegraphics[width=7cm,clip]{8733f2.eps}\end{figure}$ Figure 2: The proton phase space plots ( $Y-V_{\rm py}$ ) at (a) $\omega _{\rm pe}t = 750$ , (b) $\omega _{\rm pe}t = 1000$ and (c) $\omega _{\rm pe}t = 1200$ .
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In the text

$\begin{figure} \par\includegraphics[width=7cm,clip]{8733f3.eps}\end{figure}$ Figure 3: Time development of E_y at a) $\omega _{\rm pe}t = 750$ , b) $\omega _{\rm pe}t = 1000$ and c) $\omega _{\rm pe}t = 1200$ .
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In the text

$\begin{figure} \par\includegraphics[width=7cm,clip]{8733f4.eps}\end{figure}$ Figure 4: The electron phase space plots ( $Y-V_{{\rm e}y}$ ) at a) $\omega _{\rm pe}t = 750$ , b) $\omega _{\rm pe}t = 1000$ and c) $\omega _{\rm pe}t = 1200$ .
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In the text

$\begin{figure} \par\includegraphics[width=7cm,clip]{8733f5.eps}\end{figure}$ Figure 5: Time development of E_z at a) $\omega _{\rm pe}t = 750$ , b) $\omega _{\rm pe}t = 1000$ and c) $\omega _{\rm pe}t = 1200$ .
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In the text

$\begin{figure} \par\includegraphics[width=7cm,clip]{8733f1.eps}\end{figure}$	Figure 1: Time development of B_x at a) $\omega _{\rm pe}t = 750$ , b) $\omega _{\rm pe}t = 1000$ and c) $\omega _{\rm pe}t = 1200$ .
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$\begin{figure} \par\includegraphics[width=7cm,clip]{8733f2.eps}\end{figure}$	Figure 2: The proton phase space plots ( $Y-V_{\rm py}$ ) at (a) $\omega _{\rm pe}t = 750$ , (b) $\omega _{\rm pe}t = 1000$ and (c) $\omega _{\rm pe}t = 1200$ .
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$\begin{figure} \par\includegraphics[width=7cm,clip]{8733f3.eps}\end{figure}$	Figure 3: Time development of E_y at a) $\omega _{\rm pe}t = 750$ , b) $\omega _{\rm pe}t = 1000$ and c) $\omega _{\rm pe}t = 1200$ .
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$\begin{figure} \par\includegraphics[width=7cm,clip]{8733f4.eps}\end{figure}$	Figure 4: The electron phase space plots ( $Y-V_{{\rm e}y}$ ) at a) $\omega _{\rm pe}t = 750$ , b) $\omega _{\rm pe}t = 1000$ and c) $\omega _{\rm pe}t = 1200$ .
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$\begin{figure} \par\includegraphics[width=7cm,clip]{8733f5.eps}\end{figure}$	Figure 5: Time development of E_z at a) $\omega _{\rm pe}t = 750$ , b) $\omega _{\rm pe}t = 1000$ and c) $\omega _{\rm pe}t = 1200$ .
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$\begin{figure} \par\includegraphics[width=7cm,clip]{8733f6.eps}\end{figure}$	Figure 6: a) The dispersion relation of E_y. b) The dispersion relation of E_z.
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