Premium
Crystal growth and spectral analysis of Dy 3+ and Er 3+ doped KPb 2 Cl 5 as a mid‐infrared laser crystal
Author(s) -
Wang Yan,
Li Jianfu,
Tu Chaoyang,
You Zhenyu,
Zhu Zhaojie,
Wu Baichang
Publication year - 2007
Publication title -
crystal research and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.377
H-Index - 64
eISSN - 1521-4079
pISSN - 0232-1300
DOI - 10.1002/crat.200710967
Subject(s) - crystal (programming language) , dysprosium , analytical chemistry (journal) , infrared , ternary operation , laser , doping , chemistry , erbium , crystal growth , absorption spectroscopy , materials science , absorption (acoustics) , optics , crystallography , optoelectronics , inorganic chemistry , physics , chromatography , computer science , composite material , programming language
This paper reports crystal growth and optical characteristics of dysprosium (Dy 3+ ) and erbium (Er 3+ ) doped mid‐infrared laser crystal ternary‐potassium‐lead‐chloride (KPb 2 Cl 5 ). Two transparent crystals with good optical quality have been grown successfully by using the Bridgman technique,the largest crystal size reaches up to ∅10×60mm 2 . Measurements of X‐ray diffraction(XRD) and absorption spectra were carried out. Based on Judd‐Ofelt theory, the intensity parameters Ω t (t=2,4,6), the experimental and theoretical oscillator strengths have been obtained.The intensity parameters Ω t (t=2,4,6) of Er 3+ :KPb 2 Cl 5 were calculated to be Ω 2 =5.10×10 ‐20 cm 2 , Ω 4 =1.25×10 ‐20 cm 2 , Ω 6 =0.83×10 ‐20 cm 2 , and the values for Dy 3+ :KPb 2 Cl 5 were calculated to be Ω 2 =6.26×10 ‐20 cm 2 , Ω 4 =2.45×10 ‐20 cm 2 , Ω 6 =0.04×10 ‐20 cm 2 respectively. (© 2007 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)