Precision measurements of electric-field-induced frequency displacements of an ultranarrow optical transition in ions in a solid

S. Zhang, N. Lučić, N. Galland +5

We report a series of measurements of the effect of an electric field on the frequency of the ultranarrow linewidth ${}^7{F}_0\to$ ${}^5{D}_0$ optical transition of $\mathrm{E}{\mathrm{u}}^{3+}$…