Crystal structure, Judd-Ofelt analysis, and spectroscopic assessment of a TmAl3(BO3)4 crystal as a new potential diode-pumped laser near 1.9 micron

Guohua Jia; Chaoyang Tu; Jianfu Li; Zhenyu You; Zhaojie Zhu; Baichang Wu

doi:10.1021/ic061025n

Crystal structure, Judd-Ofelt analysis, and spectroscopic assessment of a TmAl3(BO3)4 crystal as a new potential diode-pumped laser near 1.9 micron

Inorg Chem. 2006 Nov 13;45(23):9326-31. doi: 10.1021/ic061025n.

Authors

Guohua Jia¹, Chaoyang Tu, Jianfu Li, Zhenyu You, Zhaojie Zhu, Baichang Wu

Affiliation

¹ Fujian Institute of Research on the Structure of Matter, State Key Laboratory of Structural Chemistry, National Engineering Research Center for Optoelectronic Crystalline Materials, Chinese Academy of Sciences, Fuzhou, Fujian, People's Republic of China.

PMID: 17083232
DOI: 10.1021/ic061025n

Abstract

TmAl3(BO3)4 crystallizes in the trigonal system R32 (No. 155) with a = b = 9.2741(13) A, c = 7.218(3) A, alpha = beta = 90 degrees , gamma = 120 degrees , V = 537.7(2) A(3), D(c) = 4.494 g cm(-3), and Z = 3. The absorption spectrum of this crystal was recorded at room temperature. The Judd-Ofelt (J-O) theory was applied to the absorption intensities of TmAl(3)(BO3)4 to obtain the three J-O parameters: Omega(2) = 2.40 x 10(-20) cm(2), Omega(4) = 0.48 x 10(-20) cm(2), and Omega(6) = 1.09 x 10(-20) cm(2). The radiative probabilities, radiative lifetimes, and branching ratios of TmAl3(BO3)4 were calculated. The absorption and emission cross sections, together with the potential laser gain near 1.9 microm, were investigated. The potential laser gain curves indicate that the tunability range is about 200 nm.