论文标题

NDXY1.00-XAL3(BO3)4粉末激发在1064 nm的NDXY1.00-XAL3(BO3)中的能量循环和光子 - 阿瓦兰奇样现象

Energy-looping and photon-avalanche-like phenomena in NdxY1.00-xAl3(BO3)4 powders excited at 1064 nm

论文作者

da Silva, Rodrigo F., Luz, Daniel F., Maciel, Célio V. T., Santos, Emanuel P., Soares, Gabriela, Maia, Lauro J. Q., Jacinto, Carlos, Moura, André L.

论文摘要

我们研究了ND3+含量在NDXY1.00-XAL3(BO3)4颗粒中的作用,X粒子在0.05到1.00之间。众所周知,ND3+将Y3替换为YAL3(BO3)4晶体结构可以引入晶格性质以及光致发光特性的强大修饰,例如发光浓度淬灭和光谱线的宽广。尽管如此,我们观察到,对于低x(<= 0.20),在类似x> = 0.40的pa样之前的能量循环。它与ND3+离子之间的接近度有关,这是负责ND3+能量传递的电偶极电偶极子相互作用[4F3/2,4i9/2] - [4I15/2,4I15/2]。我们讨论了针对新兴技术的目前结果,这要归功于投入输出功率依赖性中的巨大非线性,并通过超敏感的热传感器和超分辨率成像进行了讨论。

We investigate the role of the Nd3+ content on the PA characteristics in NdxY1.00-xAl3(BO3)4 particles with x ranging from 0.05 to 1.00. It is known that the replacement of Y3 by Nd3+ into the YAl3(BO3)4 crystalline structure can introduce strong modifications of the lattice properties as well as in the photoluminescence characteristics, such as luminescence concentration quenching and broadening of spectral lines. Despite that, we observe, for low x (<= 0.20) an energy-looping preceding the PA-like that ensues for x >= 0.40. It is associated to the proximity among the Nd3+ ions, fundamental to the electric dipole-electric dipole interaction responsible for the Nd3+ energy transfer [4F3/2, 4I9/2] - [4I15/2, 4I15/2]. We discuss the present results focusing on emerging technologies with development of ultra-sensitive thermal sensors, and super-resolution imaging thanks to the giant nonlinearities in the input-output power dependences.

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