Abstract The absorption spectra, fluorescence spectrum and fluorescence decay curve of Nd
3+ ions in CaNb
2O
6 crystal were measured at room temperature. The peak absorption cross section was calculated to be 6.202×10
−20 cm
2 with a broad FWHM of 7 nm at 808 nm for
E//
a light polarization. The spectroscopic parameters of Nd
3+ ions in CaNb
2O
6 crystal have been investigated based on Judd-Ofelt theory. The parameters of the line strengths
Ω t are
Ω 2=5.321×10
−20 cm
2,
Ω 4=1.734×10
−20 cm
2,
Ω 6=2.889×10
−20 cm
2. The radiative lifetime, the fluorescence lifetime and the quantum efficiency are 167 μs, 152
μs and 91%, respectively. The fluorescence branch ratios are calculated to be
β 1=36.03%,
β 2=52.29%,
β 3=11.15%,
β 4=0.533%. The emission cross section at 1062 nm is 9.87×10
−20 cm
2.
- Content Type Journal Article
- DOI 10.1007/s00340-009-3473-4
- Authors
- Y. Cheng, Chinese Academy of Sciences Shanghai Institute of Optics and Fine Mechanics Shanghai 201800 People’s Republic of China
- X. D. Xu, Chinese Academy of Sciences Shanghai Institute of Optics and Fine Mechanics Shanghai 201800 People’s Republic of China
- J. Xu, Chinese Academy of Sciences Shanghai Institute of Ceramics Shanghai 200050 People’s Republic of China
- Z. Xin, Shandong Jianzhu University School of Information and Electric Engineering Jinan 250101 People’s Republic of China
- S. M. Zhou, Chinese Academy of Sciences Shanghai Institute of Optics and Fine Mechanics Shanghai 201800 People’s Republic of China
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