Figure 2
Branching plane mirror (Mp) to suppress higher-order harmonics (upper view) and the definition of the x-, y- and z-axes (lower view). Mp is positioned with its x-axis normal to the mirror surface. The y-axis is in the direction of the SR. The z-axis is in the plane of the mirror surface, perpendicular to the direction of the SR. The chromium-, gold- and nickel-coated mirrors can be easily selected by adjusting the z-position of Mp. |