Kazakov B.; Korableva S.; Semashko V.; Goriev O.; Khadiev A.
(2017)
© 2017 Elsevier B.V.The experimental evidence of the amplified spontaneous emission of Yb3+ ions in LiYbF4 crystal, which partially stipulates up-conversion processes in Yb-sensitized phosphors, doped by rare-earth ions ...