. . "Investigation of luminescence properties of Er3+/Yb3+ and Er3+/Ho3+ co-doped chalcohalide glasses." . . "Investigation of luminescence properties of Er3+/Yb3+ and Er3+/Ho3+ co-doped chalcohalide glasses."@en . "Frumarov\u00E1, Bo\u017Eena" . . "142908" . . "Frumar, Miloslav" . "RIV/00216275:25310/12:39896009" . "4"^^ . . . "P(EE2.3.20.0254)" . "[F86374EC07D5]" . "25310" . . . "Oswald, Ji\u0159\u00ED" . . "Strong luminescence bands in NIR region were found after doping with Er3+, Yb3+ and Ho3+ ions. Mechanisms of up-conversion were presented and discussed." . . "Investigation of luminescence properties of Er3+/Yb3+ and Er3+/Ho3+ co-doped chalcohalide glasses." . . "Parchanski, V\u00E1clav" . . "Investigation of luminescence properties of Er3+/Yb3+ and Er3+/Ho3+ co-doped chalcohalide glasses."@en . "Strong luminescence bands in NIR region were found after doping with Er3+, Yb3+ and Ho3+ ions. Mechanisms of up-conversion were presented and discussed."@en . "RIV/00216275:25310/12:39896009!RIV13-MSM-25310___" . . . . "chalcogenide; rare earth codoping; luminescence"@en . . "2"^^ .