Broadband light output enhancement for scintillator using whispering-gallery modes in nanospheres
Broadband light output enhancement for scintillator using whispering-gallery modes in nanospheres
复制标题
使用纳米球回音壁模式增强闪烁体的宽带光输出
DOI：
10.1002/pssa.201431032
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发表时间：
2014-07-01
影响因子：
2
通讯作者：
Mao, Rihua
中科院分区：
文献类型：
--
作者：
Zhu, Zhichao;Liu, Bo;Mao, Rihua
单层周期性纳米球阵列用于有效地从具有宽带能力的高折射率闪烁体中提取光。与没有纳米球的普通样品相比，在紫外线和伽马射线辐射的激发下，波长积分发光和角度积分发光分别增强了72%和68%。各个球体的回音壁模式和周期性排列负责增强光提取。这种光子结构比传统的二维光子晶体具有优势。 (C) 2014 WILEY-VCH Verlag GmbH & Co. KGaA，魏因海姆
An array of monolayer of periodic nanospheres is used to efficiently extract the light from a scintillator of high refractive index with broadband capability. Compared with the plain sample without nanospheres, the enhancement of wavelength- and angle-integrated luminescence by 72 and 68% can be achieved under the excitation of ultraviolet and gamma-ray radiation, respectively. The whispering-gallery modes for the individual sphere and the periodic arrangement are responsible for the enhancement of light extraction. Such a photonic structure is advantageous over the traditional two-dimensional photonic crystal. (C) 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim