Spontaneous and stimulated emission spectroscopy of a Nd3+-doped phosphate glass under wavelength selective pumping

被引：29

作者：

Iparraguirre, I. ^{[1
]}

Azkargorta, J. ^{[1
]}

Balda, R. ^{[1
,2
,3
]}

Krishnaiah, K. Venkata ^{[4
]}

Jayasankar, C. K. ^{[4
]}

Al-Saleh, M. ^{[1
]}

Fernandez, J. ^{[1
,2
,3
]}

机构：

[1] Univ Pais Vasco UPV EHU, Dept Fis Aplicada 1, Escuela Super Ingn, Bilbao 48013, Spain

[2] Donostia Int Phys Ctr, San Sebastian 20018, Spain

[3] Mat Phys Ctr CSIC UPV EHU, San Sebastian 20018, Spain

[4] Sri Venkateswara Univ, Dept Phys, Tirupati 517502, Andhra Pradesh, India

来源：

OPTICS EXPRESS | 2011年 / 19卷 / 20期

关键词：

LINE-NARROWING SPECTROSCOPY; ENERGY-TRANSFER; LASER GLASS; ND3+ IONS; FLUORESCENCE;

D O I：

10.1364/OE.19.019440

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The influence of the host matrix on the spectroscopic and laser properties of Nd3+ in a K-Ba-Al phosphate glass has been investigated as a function of rare-earth concentration. Site-selective time resolved laser spectroscopy and stimulated emission experiments under selective wavelength laser pumping show the existence of a very complex crystal field site distribution of Nd3+ ions in this glass. The peak of the broad stimulated F-4(3/2)-> I-4(11/2) emission shifts in a non monotonous way up to 3 nm as a function of the excitation wavelength. This behavior can be explained by the relatively moderate inter-site energy transfer among Nd3+ ions found in this system and measured by using fluorescence line narrowing spectroscopy. The best slope efficiency obtained for the laser emission was 40%. (C) 2011 Optical Society of America

引用

页码：19440 / 19453

页数：14

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