APPLICATION OF 2-PHOTON SPECTROSCOPY IN THE STUDY OF TRIVALENT RARE-EARTH IONS IN CRYSTALS

被引：20

作者：

MAKHANEK, AG

SKRIPKO, GA

机构：

[1] Institute of Physics, Academy of Sciences of the Belorussian

来源：

PHYSICA STATUS SOLIDI A-APPLIED RESEARCH | 1979年 / 53卷 / 01期

关键词：

D O I：

10.1002/pssa.2210530127

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

To study the role of stepwise and relaxation processes under effective excitation of anti‐Stokes luminescence of rare‐earth (RE) ions in crystals the time‐shifted pulse method is used. It is shown that direct comparison of measured single‐ and two‐photon luminescence excitation spectra often enables one to make immediate conclusions on the position and classification of electron levels of RE ions. The Tb3+ and Eu3− level structures (crystal CaF2) in the near ultraviolet are considered as an example. The peculiarities connected with the polarization characteristics of the two‐photon absorption of radiation by the trivalent RE ions in a crystal matrix are discussed. To obtain the two‐photon spectra a frequency‐tunable organic dye solution laser (ODSL) is used. Copyright © 1979 WILEY‐VCH Verlag GmbH & Co. KGaA

引用

页码：243 / 252

页数：10

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