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| 1 | 808 nm laser triggered self-monitored photo-thermal therapeutic nano-system Y2O3:Nd^3+/Yb^3+/Er^3+@SiO2@Cu2S显示文摘A multifunctional photo-thermal therapeutic nano-platform Y2O3:Nd^3+/Yb^3+/Er^3+@SiO2@Cu2S(YR-Si-Cu2S)was designed through a core-shell structure,expressing the function of bio-tissue imaging,real-time temperature detection,and photo-thermal therapy under 808 nm light excitation.In this system,the core Y2O3:Nd^3+/Yb^3+/Er^3+(YR)takes the responsibility of emitting optical information and monitoring temperature,while the shell Cu2S nano-particles carry most of the photo-thermal conversion function.The temperature sensing characteristic was achieved by the fluorescence intensity ratio using the thermally coupled energy levels(TCLs)4S3/2/2H11/2 of Er^3+,and its higher accuracy for real-time temperature measurement in the bio-tissue than that of an infrared thermal camera was also proved by sub-tissue experiments.Furthermore,the photo-thermal effect of the present nano-system Y2O3:Nd^3+/Yb^3+/Er^3+@SiO2@Cu2S was confirmed by Escherichia coli(E.coli)and Staphylococcus aureus(S.aureus)ablation.Results indicate that YR-Si-Cu2S has application prospect in temperature-controlled photo-thermal treatment and imaging in bio-tissues. | ZHIYU ZHANG HAO SUO XIAOQI ZHAO CHONGFENG GUO | 2020 | Photonics Research2020，8，1： | 1 |
| 2 | 超宽带发光铋掺杂玻璃及光纤的研究进展(特邀)显示文摘自诺贝尔奖获得者高锟提出可用玻璃光纤代替传统电缆传输线,利用光波导传输光信号的方法来实现信息传输以来,人们就一直致力于优化现有光纤的性能和探索新的光纤激光介质材料。目前,用于光通信系统的光纤激光器和光放大器的增益光纤多见于稀土离子掺杂玻璃光纤,然而稀土离子固有的f-f跃迁导致较窄的传输带宽已经无法满足日益剧增的网络数据传输需求。铋(Bi)离子是继过渡金属离子、稀土离子后的第三类激活离子,是激光材料领域发展的新方向。目前,Bi掺杂玻璃光纤已经在1150~1550 nm和1600~1800 nm范围内实现了激光输出和光信号放大。这充分说明了Bi掺杂玻璃光纤有望解决现有数据传输能力不足的问题,成为新一代光纤激光器和放大器的增益材料。因此,文中主要介绍Bi掺杂玻璃和光纤的研究进展,分析Bi掺杂玻璃及光纤材料目前存在的问题,并展望了未来的研究方向。 | 陈为为 邱建荣 董国平 | 2023 | 红外与激光工程2023，52，5： | 0 |
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