  The dynamical stripe structure relating to the "1/8 problem" was investigated
in La$_{2-x}$Sr$_x$CuO$_4$ utilizing the high frequency response of Raman
scattering. The split of the two-magnon peak due to the formation of the stripe
structure was observed at whole Sr concentration region from $x=0.035$ to 0.25
at low temperatures. Especially clear split was observed at low carrier
concentration region $x=0.035 - 0.06$ and at $x \sim 1/8$. The onset
temperatures of these stripe structures are as high as 300-350 K, which are
much higher than the temperatures measured by slow response probes.
