Multifunctional Laser-Induced Bubble Microresonator for Upconversion Emission Enhancement
Multifunctional Laser-Induced Bubble Microresonator for Upconversion Emission Enhancement
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DOI：
10.1021/acs.jpcc.3c00559
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发表时间：
2023-04
期刊：
影响因子：
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通讯作者：
M. Kataria;Catherine Currie Duncan;Bergen Polinko Murray;Manav Bindesh Parikh;Zijie Yan
中科院分区：
文献类型：
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作者：
M. Kataria;Catherine Currie Duncan;Bergen Polinko Murray;Manav Bindesh Parikh;Zijie Yan
镧系元素掺杂的上转换纳米颗粒（UCNPs）是近红外激发下具有纳米光子应用前景的发光材料，但其上转换发光的量子产率较低，限制了其充分发挥潜力。在此，我们已经设计并证明了一种策略，以提高发射的UCNPs薄膜的激光诱导微泡。微泡起着多功能的作用，包括通过马兰戈尼公约从溶液中收集等离子体银纳米粒子，将它们印刷在UCNP膜上以通过局部表面等离子体共振增强发射，以及作为气泡微谐振器以实现光学回音壁模式（WGM）。总之，气泡微谐振器沿着等离子体银纳米颗粒可以将上转换发射增强超过200倍。这种集成的方法开辟了新的途径，同时增强发光材料的发射和组装的纳米粒子在理想的表面，光学机械，生物化学和传感应用。
Lanthanide-doped upconversion nanoparticles (UCNPs) are attractive luminescent materials for nanophotonic applications under near-infrared excitation, but their full potential is still limited by the low quantum yield of upconversion emission. Herein, we have designed and demonstrated a strategy to enhance the emission of a UCNPs film by a laser-induced microbubble. The microbubble plays multifunctional roles, including collecting plasmonic Ag NPs from the solution by the Marangoni convention, printing them on the UCNPs film to enhance the emission by localized surface plasmon resonances, and serving as a bubble microresonator to enable optical whispering gallery modes (WGMs). Together, the bubble microresonator along with plasmonic Ag NPs can enhance the upconversion emissions by over 200 times. This integrated approach opens new pathways for simultaneous enhancement of emissions from luminescent materials and assembly of NPs over desirable surfaces for optomechanical, biochemical, and sensing applications.