Population kinetics of laser levels of neodymium ions in POCl₃—SnCl₄—²³⁵UO₂²⁺—Nd³⁺excited by fission fragments

Radioluminescence of Dy3+ in uranium-containing solutions of phosphorous oxychloride

“…Inverse population of the Nd3+ upper lasing level has been revealed recently during direct nuclear pumping of the inorganic laser liquids (ILLs) POCl 3 −SnCl 4 -235 U -Nd 3+ and POCl 3 -BCl 3 -Nd 3+ in the pulse nuclear reactor BARS 6 [2]. Thus, it was demonstrated that it is pos sible in principle to obtain lasing by the direct nuclear pumping of liquid media.…”