Cr3+-doped LiNbO3 crystals grown by the Bridgman method by Haiping Xia, Hongwei Song, Jinhao Wang, Jiahua Zhang, Tie Wang, Jianli Zhang, Yuepin Zhang, and Qiuhua Nie

Crystal Research and Technology

Cryst. Res. Technol. 40, 199 (2005) - Abstract -

Cr³⁺-doped LiNbO₃ crystals grown by the Bridgman method

Haiping Xia, Hongwei Song*, Jinhao Wang, Jiahua Zhang*, Tie Wang*, Jianli Zhang, Yuepin Zhang, and Qiuhua Nie

Laboratory of Photo-electronic Materials, Ningbo University, Zhejiang Province, 315211, P. R. China
*Laboratory of Excited state Physics, Changchun Institute of Optics, Fine Machine and Physics, Chinese Academy of Sciences, Changchun 130033, P. R. China

Keywords	Cr³⁺ ion, lithium niobate, Bridgman method, optical properties
PACS	81.10.Fq, 78.55.Hx, 78.20.-e, 81.40.Tv
DOI	10.1002/crat.200410325

The growth of LiNbO₃ crystals doped with Cr³⁺ ions in 0.1, 0.2, and 0.5 mol % concentrations by Bridgman method were reported. The Cr³⁺ ion concentrations in crystals were measured by inductively coupled plasma spectrometry. Electron paramagnetic resonance had been used to investigate the sites occupied by the Cr³⁺ ions. Two Cr³⁺ ion centers located at Li⁺ and Nb⁵⁺ sites were observed. Optical absorption and temperature-dependence emission spectra of the Cr³⁺ ions were reported. The crystal-field parameters and Racah parameters of the Cr³⁺ ion defect sites were reported and compared with those grown by Czochralski technique.

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