OPTICAL CHARACTERIZATION OF HO3+ IONS IN LINBO3 AND IN LINBO3-MGO CRYSTALS

被引：21

作者：

LORENZO, A

BAUSA, LE

SOLE, JG

机构：

[1] Dept. de Fisica de Mater. C-IV, Univ. Autonoma de Madrid

来源：

JOURNAL OF PHYSICS-CONDENSED MATTER | 1994年 / 6卷 / 05期

关键词：

D O I：

10.1088/0953-8984/6/5/017

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

A detailed study of the optical absorption and emission spectra of Ho3+ ions in LiNbO3 crystals in the visible spectral region is presented. The positions of the crystal-field levels are given for the F-5(5), S-5(2) + F-5(4), F-5(3) and (5)G(6) multiplets of Ho3+ ions. The type and character of the Stark transitions have been determined by polarized absorption measurements. Optical absorption measurements and site-selective spectroscopy have shown the existence of two crystal-field sites for Ho3+ in the LiNbO3 matrix. The effect of co-doping with MgO on the optical spectre of Ho3+ ions has also been studied and a new Ho3+ Site perturbed by the presence of a neighbouring Mg2+ ion is evidenced.

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页码：1065 / 1078

页数：14

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