Figure 3
(a) Simulated amplitude of the recorded time-resolved signal as a function of the sample thickness and of the XMCD contrast magnitude calculated according to equation (12), and normalized to the optical density. The amplitude of the time-resolved signal is proportional to the magnitude of the XMCD contrast, γXMCD. (b) Same calculation as in (a), but utilizing the relation in equation (13), normalized to ODexp(−OD). The results are effectively equal to the ones shown in (a), indicating that the first-order Taylor expansion is a reasonable approximation. |