Eur. Phys. J. Appl. Phys.
Volume 74, Number 1, April 2016
|Number of page(s)||6|
|Published online||01 April 2016|
Growth and spectral characters of Nd:CaGdAlO4 crystal
National Engineering & Technology Research Center of Scattered Metals, Vital Materials Co., Limited, 511517 Qingyuan, P.R. China
2 School of Metallurgy and Environment, Central South University, 410083 Changsha, P.R. China
3 College of Fundamental Studies, Shanghai University of Engineering Science, 201620 Shanghai, P.R. China
4 Jiangsu Key Laboratory of Advanced Laser Material and Device, Jiangsu Normal University, 221116 Xuzhou, P.R. China
5 Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, 201800 Shanghai, P.R. China
6 State Key Laboratory of Crystal Materials and Institute of Crystal Materials, Shandong University, 250100 Jinan, P.R. China
Revised: 23 January 2016
Accepted: 25 February 2016
Published online: 1 April 2016
In this paper, crystal growth and polarized spectra of Nd:CaGdAlO4 (Nd:CALGO) crystal were reported. The maximal absorption cross-sections are 6.8 and 7.5 × 10−20 cm2 for π-polarization and σ-polarization, and the emission cross-sections are 12.5 × 10−20 cm2 with full width at half maximum (FWHM) of 18 and 11 nm, respectively. The Judd-Ofelt (JO) theory was used to calculate the spectral parameters and the effective intensity parameters Ω2, Ω4 and Ω6 were 0.8 × 10−20 cm2, 7.5 × 10−20 cm2 and 5.8 × 10−20 cm2, respectively. The lifetime was 123 μs. The results show that Nd:CALGO crystal is a promising medium for laser output.
© EDP Sciences, 2016
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