No abstract

No abstract

No abstract

Detailed investigations are made of orientational luminescent characteristics of YA10,-Nd3+ laser crystals. Anisotropy of the spatial distribution of the intermanifold luminescence intensity due to 4F3jz + 41(~p-15/2 channels is observed and its theoretical interpretation is given. The intermanifold and the "Stark" luminescence branching ratios, the peaks, and the effective cross-sections of the transitions are determined for the t,hree crystallographic directions a, 6, and c of the crystal a t 77 and 300 K. The probabilities of spontaneons transitions and a number of some other spectroscopic parameters are also measured. On the base of obtained data the question of using the J u d d -Ofelt treatment for the analysis of spectral properties of anisotropic crystals doped with TR3+ ions is discussed. A e T a J I h H O PICCJleZOBaHbI OpIIeIITal[PIOHHhIe J W M P I H e C I I e H T H b l e Ya])aKTe1~14CTPIIi&I 3 a 3 e p H h I XIcpIICTaJIJlOB YA10,-h'd3+. 0 6 H a p y m e l I a aHPI30T1lOnPIR npOCT]lallCTBt?HHorO pacIIpeae-S e H P I R AHTeI1CWBIIOCTII M e m M y J I b T 1 4 n 3 e T H O f i JIOMPIHeCLleHUPIM lialIaJIOR * F~/ Z -419j2-15/2 PI A a e T C R ee T e O p e T P I ' i e C K a X T [ l a K T O B K a . AJlFI 77 PI 300 K N I R T p e X r J I a B H h l X IipPICTaJJIO-, ,ILlTapHOBC€

No abstract