Luminescence properties of highly Cr co-doped Nd:YAG powder produced by sol-gel method |
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| Authors: | Kana Fujioka Taku Saiki Yasushi Fujimoto Masahiro Nakatsuka |
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| Institution: | a Institute of Laser Engineering, Osaka University, 2-6 Yamadaoka, Suita, Osaka 565-0871, Japan
b Institute for Laser Technology, 1-8-4 Utubohonnmati, Nishiku, Osaka, Osaka 550-0004, Japan |
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| Abstract: | We examined luminescence properties of highly chromium co-doped Nd:YAG powders fabricated by the sol-gel method. Though the maximum luminescence intensity of Cr:YAG was at 3.0 mol% of Cr3+ concentration, we found that the enhancement effect on Nd:YAG by co-doping Cr3+ was continued until 6.0 mol% of Cr3+ concentration. This phenomenon is well-explained by a simple energy transfer model derived from the rate equations between Cr3+ and Nd3+. The enhancement of sensitization for Nd3+ activator by high co-doped Cr3+ is very effective for making a miniaturized or thin film-type solar laser. |
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| Keywords: | Nd/Cr:YAG Luminescence Sensitizer Sol-gel Powder |
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