Figure 1

The transmission at 21.2 nm as a function of temperature calculated by the TOPS code for iron at various densities $\rho$ in $\mathrm{g}{\mathrm{cm}}^{-3}$ (as indicated), but keeping the density-thickness product constant as for solid iron of $0.05\mu \mathrm{m}$ thickness.Reuse & Permissions

Figure 2

Data points (filled squares) show the measured transmission of 21.2 nm laser light through 50 nm of iron and 0.8 microns thick aluminum as a function of time from the peak of a laser pulse of irradiance variation as shown ($x$) ablating the iron layer. Simulations of the transmission using Ehybrid and a postprocessor are shown as open circles with $A=0.05$ or 0.1 (as labeled) absorption of the laser power controlled by altering the input laser energy. The solid and broken (dot-dash) curves are the transmission through unablated target material assuming ablation according to the deflagration model (broken curve) or self-regulating model (solid curve) with $A=0.05$ or 0.1 (as labeled). For the self-regulating model, Li-like iron ionization is assumed.Reuse & Permissions