Spectral-luminescent properties of Yb$^{3+}$ in SOCl$_{2}$–GaCl$_{3}$

The absorption, luminescence, and luminescent lifetimes of the excited state of Yb$^{3+}$ in SOCl$_{2}$–GaCl$_{3}$–Yb$^{3+}$ solutions were measured. Information was obtained on the Stark splitting of energy levels, absorption cross sections, and stimulated emission of Yb$^{3+}$ in SOCl$_{2}$–GaCl$_{3}$–Yb$^{3+}$. The possibility of creating a ytterbium laser based on inorganic liquid SOCl$_{2}$–GaCl$_{3}$–Yb$^{3+}$ with diode pumping was considered.