کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5488670 | 1524105 | 2017 | 18 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
2 μm emission performance in Tm3+/Er3+ codoped silicate glasses under 800 nm and 980 nm excitation
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موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک اتمی و مولکولی و اپتیک
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
In this paper, mid-infrared 2 μm emission properties and energy transfer mechanism were investigated in Er3+/Tm3+ co-doped silicate glasses with optimized extra-low hydroxyl content âOH- (0.73 cmâ1). The intensity parameters Ωt (t = 2, 4, 6) were calculated from the measured absorption spectra based on the Judd-Ofelt theory. The energy transfer efficiency from the Er3+:4I13/2 level to the Tm3+:3F4 level was calculated and reached up to 91.2% under 980 nm LD pumps and quantum efficiency is 63%. Meanwhile, the 1.85 μm band stimulated absorption and emission cross-sections of Tm3+:3F4 â 3H6 transitions were also obtained and analyzed. In addition, the measured ÎT (evaluate the glass forming ability) is as high as 297 °C, which shows that the silicate glass (SBET) possess good thermal stability. Hence, all of the present investigations indicate that the Er3+/Tm3+ co-doped silicate glasses have potential applications in 2 μm laser materials and may provide beneficial guide for investigation of population behaviors of Tm3+ ions at 2 μm emissions.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Infrared Physics & Technology - Volume 81, March 2017, Pages 21-26
Journal: Infrared Physics & Technology - Volume 81, March 2017, Pages 21-26
نویسندگان
Ruijie Cao, Yu Lu, Ying Tian, Feifei Huang, Yanyan Guo, Shiqing Xu, Junjie Zhang,