Towards novel probes for valence charges <i>via</i> X-ray optical wave mixing
Towards novel probes for valence charges <i>via</i> X-ray optical wave mixing
We present a combined theoretical and experimental study of X-ray optical wave mixing. This class of nonlinear phenomena combines the strengths of spectroscopic techniques from the optical domain, with the high-resolution capabilities of X-rays. In particular, the spectroscopic sensitivity of these phenomena can be exploited to selectively probe valence dynamics. …