Aspects of the Exceptional Group E8

Wybourne, B. G.

doi:10.1071/ph790417

Cited by 16 publications

(2 citation statements)

References 5 publications

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“…However, based on our experimental measurements of the excitation spectrum and the fluorescence spectrum, the radiation transition from the substable 4 I 9/2 states are interesting. The luminescence parameters of NYAB crystal have been calculated and refer to the related data [16][17][18][19]. The results are given in Table 2.…”

Section: Luminescence Parametersmentioning

confidence: 99%

Spectroscopic Properties and Diode Laser-Pumped Operation of Nd : YAl3(BO3)4 Crystal

Jiang

Wang

Zhang

et al. 2002

phys. stat. sol. (a)

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Subject classification: 42.55.Px; 78.20.Ci; S10.15Nd-doped yttrium aluminum borate, Nd x Y 1--x Al 3 (BO 3 ) 4 (NYAB), with large sizes and good optical quality has been grown by the flux method. When the Judd-Ofelt (JO) theory of parity-forbidden electric-dipole transitions of rare earth ions on non-centrosymmetric sites was applied to NYAB, it resulted in a good fit on absorption of the crystal. According to the JO theory, the fitted intensity parameters W t (t ¼ 2, 4, and 6) were calculated as 2.19 Â 10 --20 , 1.97 Â 10 --20 , and 3.10 Â 10 --20 cm 2 , respectively, with a root mean square deviation of 1.22 Â 10 --21 cm 2 . The emission properties of the excited 4 F 3/2 state have been studied, and the spectral parameters of NYAB crystal were compared with those of Nd x Gd 1--x Al 3 (BO 3 ) 4 (NGAB) crystal. A cw NYAB laser at 1.06 mm end-pumped by a high-power diode laser array has been demonstrated. A maximum output of 3.2 W at 1.06 mm has been achieved with an optical conversion efficiency of 29.1% and an average slope efficiency of 37.5%. It is found that these results approach those of Nd : YVO 4 crystal.

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