Influence of grain size and Nd3+ concentration on the stimulated emission of LiLa1-xNdxP4O12 crystal powders

被引：8

作者：

Azkargorta, J. ^{[1
]}

Marciniak, L. ^{[2
]}

Iparraguirre, I. ^{[1
]}

Balda, R. ^{[1
,3
]}

Strek, W. ^{[2
]}

Barredo-Zuriarrain, M. ^{[1
]}

Garcia-Revilla, S. ^{[1
]}

Fernandez, J. ^{[1
,3
]}

机构：

[1] Univ Pais Vasco UPV EHU, Dept Fis Aplicada 1, Escudo Super Ingn, Alda Urquijo S-N, Bilbao 48013, Spain

[2] Polish Acad Sci, Inst Low Temp & Struct Res, Dept Excited States Spect, PL-50422 Wroclaw, Poland

[3] Univ Basque Country, CSIC, Ctr Phys Mat, San Sebastian 20018, Spain

来源：

OPTICAL MATERIALS | 2017年 / 63卷

关键词：

Rare-earth; Random laser; Lithium-neodymium tetraphosphate; LASERS;

D O I：

10.1016/j.optmat.2016.07.016

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The influence of grain size and neodymium concentration on the threshold and absolute slope efficiency of the stimulated emission of LiLa1-xNdxP4O12 (x = 0.1, 0.5, and 1) crystalline powders has been investigated by using a pulsed Ti-sapphire pumping. The absolute slope efficiencies are similar for the studied samples with x = 0.5 and 1 whereas the lowest threshold pump energy corresponds to the stoichiometric sample with an average grain size of around 20 gm. The grain size also affects the emitting surface of the random laser due to the reduction of the difussive length as grain size decreases. The experimental results show the importance of seeking the optimal grain size for a given material. (C) 2016 Elsevier B.V. All rights reserved.

引用

页码：46 / 50

页数：5

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