1. Crystal growth and optical properties of Sm:CaNb2O6 single crystal
- Author
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Di, Juqing, Xu, Xiaodong, Xia, Changtai, Zeng, Huidan, Cheng, Yan, Li, Dongzhen, Zhou, Dahua, Wu, Feng, Cheng, Jimeng, and Xu, Jun
- Subjects
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CRYSTAL growth , *OPTICAL properties , *SAMARIUM , *CALCIUM compounds , *SINGLE crystals , *X-ray diffraction , *LIGHT absorption , *EMISSION spectroscopy , *THERMAL expansion , *QUANTUM chemistry , *QUANTUM efficiency - Abstract
Abstract: Sm:CaNb2O6 single crystal has been grown by the Czochralski method. Its high-temperature X-ray powder diffraction, optical absorption, emission spectroscopic as well as lifetime have been studied. Thermal expansion coefficients (α), J–O parameters (Ω i ), radiative lifetime (τ rad), branching ratios (β) and stimulated emission cross-sections (σ e) were calculated. The quantum efficiency (η) was calculated to be 97%. The intense peak emission cross section at 610, 658nm were calculated to be 2.40×10−21, 2.42×10−21 cm2. These results indicate that Sm:CaNb2O6 crystal has potential use in visible laser and photonic devices area. [Copyright &y& Elsevier]
- Published
- 2012
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