Figure 9
Circularly polarized incident radiation. Shown is the reflected amplitude on the σπ plane. With time, the amplitude rotates in this plane quite rapidly. For clarity, the resulting spiral is not shown completely, but its cross section is shown every femtosecond. After 21 fs the reflected radiation is linearly polarized perpendicularly to the plane of incidence. At 32 fs the polarization is again linear but rotated about 90°, and so on. Note again the drop of the intensity to zero at 55 fs and its subsequent reappearance. |