Fluorescence emission from Eu and Ce compounds induced by shock wave loading

Fluorescence emission generated by a plate-impact-induced shock wave has been detected from Eu and Ce-containing powder materials using a time-resolved emission spectroscopy. Some features of this relatively unknown phenomenon have been investigated, namely spectral shifts, emission intensities, and their shock strength dependence. Observed spectra are all broadened and redshifted but the magnitudes of the wavelength shifts depend strongly on the material. The wavelength shifts, however, show little dependence on the shock strength. The fluorescence intensity, on the other hand, has been found to be strongly dependent on the shock strength and the material.