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首页> 外文期刊>Optics Letters >Steady-state and time-resolved upconversion photoluminescence in Yb3+-Er3+ co-doped transparent ceramics of YAG
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Steady-state and time-resolved upconversion photoluminescence in Yb3+-Er3+ co-doped transparent ceramics of YAG

机译：YB3 + -S3 +共掺杂透明陶瓷中YB3 + -ER3 +共掺杂透明陶瓷的稳态和时间分辨上转化光致发光

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摘要

Transparent ceramics (TCs) represent a new family of functional hard materials. In this Letter, steady-state and time-resolved upconversion photoluminescence in Yb3+-Er3+ co-doped TC of yttrium aluminum garnet (TC-YAG) are reported for the first time, to the best of our knowledge. Under the excitation of near-infrared 940 nm laser at roomtemperature, the Yb3+-Er3+ co-doped TC-YAG emits intense multi-color luminescence consisting of cyan, green, and red groups of sharp lines. More excitingly, the green group of luminescence due to the transitions from S-4(3/2) to I-4(15/2) states of Er3+ are the prominent components with the average lifetime of similar to 0.3 ms. The internal quantum efficiency of the green luminescence is estimated to be 32.8%. A unique dual-resonance energy transfer from Yb3+ to Er3+ via the excited-state vibronic transitions is proposed as the principal mechanism of the strongest green luminescence of Er3+ ions in TC-YAG. (C) 2020 Optical Society of America
机译：透明陶瓷（TCS）代表新款功能性硬质材料。 在这封信中，首次向我们的知识中首次报告了YB3 + -S3 +共掺杂Tc的稳态和时间分辨的上转化光致发光（Tc-YAG）。 在室温的近红外线940nm激光的激发下，Yb3 + -er3 +共掺杂的Tc-yag发出强烈的多色发光，由青色，绿色和红色锐线组成。 更令人兴奋地，由于S-4（3/2）到I-4（15/2）的转变为ER3 +的陈述的绿色发光是突出的组件，平均寿命与0.3ms相似。 绿色发光的内部量子效率估计为32.8％。 通过励磁状态振动转变，从YB3 +至ER3 +的独特双共振能量转移为TC-YAG中ER3 +离子最强的绿色发光的主要机理。 （c）2020美国光学学会

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  • 来源
    《Optics Letters》 |2020年第20期|共4页
  • 作者

    Tang Fei; Li Haoqi; Tian Kangzhen; Ning Jiqiang; Ye Honggang; Xu Shijie;

  • 作者单位

    Jiangsu Normal Univ Sch Phys &

    Elect Engn Jiangsu Key Lab Adv Laser Mat &

    Devices Xuzhou 221116 Jiangsu Peoples R China;

    Xi An Jiao Tong Univ Dept Appl Phys Xian 710049 Peoples R China;

    Jiangsu Normal Univ Sch Phys &

    Elect Engn Jiangsu Key Lab Adv Laser Mat &

    Devices Xuzhou 221116 Jiangsu Peoples R China;

    Chinese Acad Sci Vacuum Interconnected Nanotech Workstn Suzhou Inst Nanotech &

    Nanobion Suzhou 215123 Peoples R China;

    Xi An Jiao Tong Univ Dept Appl Phys Xian 710049 Peoples R China;

    Univ Hong Kong Dept Phys Pokfulam Rd Hong Kong Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 计量学;光学;
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