Surface plasmon excited infrared-to-visible upconversion in Er³⁺-doped transparent glass ceramics

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• 作者：Jumpei Ueda ; Setsuhisa Tanabe ; Akito Ishida
• 关键词：Glass ceramics ; Glasses ; Nano-crystals ; Optical spectroscopy ; Upconversion ; Rare-earths in glasses
• 刊名：Journal of Non-Crystalline Solids
• 出版年：2009
• 出版时间：1 October 2009
• 年：2009
• 卷：355
• 期：37-42
• 页码：1912-1915
• 全文大小：584 K

文摘

The surface plasmon (SP) excited infrared-to-visible upconversion luminescence has been studied in the oxyfluoride glass ceramics containing Er³⁺-doped fluoride nano-crystals. Upconversion luminescence was observed at glass ceramics. Quantum yield of upconversion luminescence increased with increasing heat-treatment temperature. The transparent glass ceramics heat-treated at 700 °C was covered with a 50 nm gold film, and then attached to an SF10 prism with index-matching oil to make an attenuated total reflection (ATR) illumination. The intense upconversion luminescence bands at 540 and 660 nm were observed at the SP resonance angle by using p-polarized laser beam. The apparent dependences of the upconversion efficiency on laser polarization and on incident angle demonstrated the SP excited upconversion of Er³⁺.