Thermal and polarized spectroscopic characteristics of Nd3+:LiLa(WO4)2 crystal

被引：25

作者：

Huang, Xinyang ^{[1
,2
]}

Fang, Qin ^{[1
]}

Yu, Quanmiao ^{[1
]}

Lue, Xingdong ^{[1
]}

Zhang, Lizhen ^{[2
]}

Lin, Zhoubin ^{[2
]}

Wang, Guofu ^{[2
]}

机构：

[1] Jiangxi Univ Finance & Econ, Elect Coll, Nanchang 330013, Jiangxi, Peoples R China

[2] Chinese Acad Sci, Fujian Inst Res Struct Matter, Fuzhou 350002, Peoples R China

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2009年 / 468卷 / 1-2期

关键词：

Nd3+:LiLa(WO4)(2) crystals; Optical characteristics; Thermal properties; M LASER CHARACTERISTICS; SPECTRAL PROPERTIES; OPTICAL-ABSORPTION; GROWTH; INTENSITIES; EMISSION; ND3+; NEODYMIUM;

D O I：

10.1016/j.jallcom.2007.12.091

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The thermal and polarized spectroscopic characteristics of Nd3+:LiLa(WO4)(2) crystals have been investigated. The hardness of Nd3+:LiLa(WO4)(2) crystal is 389.7 VDH. The specific heat at 330 K is 0.47 J g K-1(1) . The thermal expansion coefficients for c- and a-axes are 7.70 x 10 (6) and 14.63 x 10 (5) C (1), respectively. The spectral parameters have been determined by Judd-Ofelt theory and Fuchbauer-Ladenburg formula. The intensity parameters Omega(1) obtained are Omega(2) = 12.914 x 10 (20) cm(2), Omega(4) = 3.79 x 10 (20) cm(2), Omega(6) = 3.72 x 10 (20) cm(2). The radiative and fluorescence lifetimes are 145 and 165 mu s, respectively. The quantum efficiency is 91.9%. The absorption band at 805 nm has an FWHM of around 20 nm for both pi- and sigma-polarizations, respectively. The simulated emission cross-sections are 8.899 and 7.787 x 10 (20) cm(2) for pi- and sigma-polarizations, respectively. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：321 / 326

页数：6

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