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Growth and optical properties of Nd:LaVO4 monoclinic crystal

Published online by Cambridge University Press:  20 September 2012

Shangqian Sun ,
Huaijin Zhang ,
Haohai Yu ,
Honghao Xu ,
Hengjiang Cong  and
Jiyang Wang
Shangqian Sun
Affiliation:
State Key Laboratory of Crystal Materials, Institute of Crystal Materials, Shandong University, Jinan 250100, China; and School of Physics, Shandong University, Jinan 250100, China
Huaijin Zhang*
Affiliation:
State Key Laboratory of Crystal Materials, Institute of Crystal Materials, Shandong University, Jinan 250100, China
Haohai Yu
Affiliation:
State Key Laboratory of Crystal Materials, Institute of Crystal Materials, Shandong University, Jinan 250100, China
Honghao Xu
Affiliation:
State Key Laboratory of Crystal Materials, Institute of Crystal Materials, Shandong University, Jinan 250100, China
Hengjiang Cong
Affiliation:
State Key Laboratory of Crystal Materials, Institute of Crystal Materials, Shandong University, Jinan 250100, China
Jiyang Wang
Affiliation:
State Key Laboratory of Crystal Materials, Institute of Crystal Materials, Shandong University, Jinan 250100, China
*
a)Address all correspondence to this author. e-mail: hjzhang@icm.sdu.edu.cn
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Abstract

Nd-doped LaVO4 crystals with the concentration up to 0.94 at.% were successfully grown by the Czochralski method. X-ray powder diffraction measurement reveals that this crystal belongs to a monoclinic space group P21/n. Refractive indices of Nd:LaVO4 have been measured with two right angle prisms for the first time to our knowledge and show that they are anisotropic. Its absorption and fluorescence spectra are also investigated. With the Judd–Ofelt theory, the optical parameters calculated are Ω2 = 2.142 × 10−20 cm2, Ω4 = 3.704 × 10−20 cm2, and Ω6 = 2.948 × 10−20 cm2. By these parameters, the absorption oscillator strengths, line strengths, transition probabilities, fluorescence branch ratios, radiative lifetime, and integrated emission cross section are also derived and compared with familiar vanadates, which show that Nd:LaVO4 is a atypical material and has potential applications in the lasers, especially in the pulsed lasers.

Keywords

Crystal growthx-ray diffractionabsorption spectrafluorescence spectrum81.10.Fq61.05.cp78.40.-q78.55-m
Type
Articles
Information
Journal of Materials Research , Volume 27 , Issue 19 , 14 October 2012 , pp. 2528 - 2534
Copyright
Copyright © Materials Research Society 2012

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