Abstract:
The performance of multilayer Mo/Si mirrors with B$_{4}$C and Be spacers near a wavelength of 13.5 nm has been studied. It has been shown that four-component Mo/Si/B$_{4}$C mirrors outperform Mo/Si and Mo/Si/B$_{4}$C mirrors in reflection coefficient by 2.0 and 1.3%, respectively. In addition, Mo/Si mirrors offer the widest transmission band width at half maximum ($\Delta\lambda_{1/2}$ = 0.535 nm). An explanation for these findings has been given.