Spectral Properties and Upconversion Luminescence of Er^3＋, yb^3＋： BaWO4 Crystal

The optical quality of Er^3＋, yb^3＋： BaWO4 crystal was gown by Czochralski method. Absorption spectra were measured and energy levels were assigned. According to Judd-Ofelt theory, the spectral strength parameters of Er^3＋ ion were fitted to beΩ2 =0.3926 x 10^-20 cm^2, Ω4 =0.0721×10^-20 cm^2, Ω6 =0....

Full description

Saved in:
Bibliographic Details
Published inJournal of rare earths Vol. 25; no. 5; pp. 578 - 584
Main Author 臧竞存 谢丽艳 李晓 郭凯 刘国庆 邹玉林 吕超 冯宝华
Format Journal Article
LanguageEnglish
Published 2007
Subjects
化学结构
激光晶体
稀土元素
Online AccessGet full text

Cover

More Information
Summary:The optical quality of Er^3＋, yb^3＋： BaWO4 crystal was gown by Czochralski method. Absorption spectra were measured and energy levels were assigned. According to Judd-Ofelt theory, the spectral strength parameters of Er^3＋ ion were fitted to beΩ2 =0.3926 x 10^-20 cm^2, Ω4 =0.0721×10^-20 cm^2, Ω6 =0.0028 ×10.20 cm^2. Emission peaks centered at around 523,544 and 670 nm were observed under 334 nm He-Cd laser excitation and emission peaks centered at 1001 and 1534 nm were detected under 976 nm laser excitation. Strong green emission was also observed when the crystal was pumped with 808 nm and 976 nm laser. The mechanisms of frequency upconversion and sensitization were analyzed.
Bibliography:11-2788/TF
O482.3
Er^3＋, Yb^3＋： BaWO4 crystal
upconversion
O782.5
laser crystal
laser crystal; upconversion; Er^3＋, Yb^3＋： BaWO4 crystal; rare earths
rare earths
ISSN:1002-0721
2509-4963