Directional light output enhancement of scintillators by mixed-scale microstructures based on soft-X-ray interference lithography and self-assembly
Directional light output enhancement of scintillators by mixed-scale microstructures based on soft-X-ray interference lithography and self-assembly
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DOI：
10.1016/j.jlumin.2023.119982
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发表时间：
2023-06-11
影响因子：
3.6
通讯作者：
Liu，Bo
中科院分区：
文献类型：
--
作者：
Yuan，Di;Liu，Mingjie;Liu，Bo
在本文中，我们已经成功地证明了闪烁体的光输出的方向控制，可以实现由混合规模的微结构，集成光子晶体的波长尺度和微米尺度上的微透镜阵列。与参考样品相比，混合尺度微结构可以在35°出射角处将闪烁体的光输出增强3.07倍。光输出的这种增强表现出方位角和波长依赖性。我们的混合模拟和实验表征解释了增强的定向光输出背后的物理机制。该方法具有在辐射检测系统和其他需要定向光输出的发光器件中应用的潜力。
In this paper, we have successfully demonstrated that the directional control of the light output of the scintillator can be achieved by mixed-scale microstructures which integrate photonic crystals on the wavelength scale and microlens arrays on the micrometer scale. Compared to the reference sample, the mixed-scale microstructures can enhance the light output of the scintillator by 3.07-fold at the emergence angle of 35°. This enhancement in the light output exhibits both azimuthal angle and wavelength dependence. Our hybrid simulation and experimental characterization explain the physical mechanism behind the enhanced directional light output. This method holds potential for application in radiation detection systems and other light-emitting devices requiring directional light output.