Extended Data Fig. 6: Non-resonant optical Kerr effect in β-aluminas.
From: The persistence of memory in ionic conduction probed by nonlinear optics
Schematic of the experimental configuration (a) and signals from thick Na (orange), K (purple), and Ag (dark red) β-alumina crystals (b) at positive time delays following a strong coherent artefact at zero time delay. The frequency components are extracted from linear prediction fitting results (Methods) shown as black dashed lines.
