Climate Change Data Portal
| DOI | 10.1016/j.jlumin.2020.117862 |
| Directional light outcoupling enhancement of scintillators via hollow microlens arrays | |
| Yuan, Di; Guo, Yaozhen; Liu, Bo; Zhao, Jun; Zhu, Zhichao; Cheng, Chuanwei; Chen, Hong; Gu, Mu; Chen, Liang; Liu, Jinliang; Ouyang, Xiaoping | |
| 通讯作者 | Liu, B (通讯作者)，Tongji Univ, Shanghai Key Lab Special Artificial Microstruct, Sch Phys Sci & Engn, Shanghai 200092, Peoples R China. |
| 发表日期 | 2021 |
| ISSN | 0022-2313 |
| EISSN | 1872-7883 |
| 卷号 | 232 |
| 英文摘要 | Scintillators are widely used in ionization radiation detection. The light extraction efficiency and thus the effective light output of scintillators are limited by the total internal reflection due to their high refractive indices. Furthermore, scintillators have an approximate Lambertian profile for the spatial distribution of the light emission, which is detrimental to the collection of light. In this paper, hollow microlens arrays (HMLAs) composed of periodic arrangement of individual hollow shell hemispherical microlenses are proposed to achieve the directional light extraction enhancement of scintillators. The optical properties of HMLAs can be conveniently adjusted by varying the refractive index and the thickness of the shell layer. Simulation results reveal that the refractive index and the thickness of the shell of the individual hollow microlenses are the key parameters to achieve the control of the light output of scintillators. The measurement results of the prepared HMLAs-coated LYSO scintillator are consistent with the prediction of the numerical simulations. This scheme of directional light extraction enhancement by HMLAs is also applicable to other light-emitting devices that have the requirement of directional emission. |
| 英文关键词 | Hollow microlens arrays; Scintillators; Light extraction; Directional emission |
| 语种 | 英语 |
| WOS研究方向 | Optics |
| WOS类目 | Optics |
| WOS记录号 | WOS:000616284600001 |
| 来源期刊 | JOURNAL OF LUMINESCENCE
 |
| 来源机构 | 中国科学院西北生态环境资源研究院 |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/254338 |
| 作者单位 | [Yuan, Di; Guo, Yaozhen; Liu, Bo; Zhu, Zhichao; Cheng, Chuanwei; Chen, Hong; Gu, Mu] Tongji Univ, Shanghai Key Lab Special Artificial Microstruct, Sch Phys Sci & Engn, Shanghai 200092, Peoples R China; [Zhao, Jun] Chinese Acad Sci, Shanghai Adv Res Inst, Shanghai 201800, Peoples R China; [Chen, Liang; Liu, Jinliang; Ouyang, Xiaoping] Northwest Inst Nucl Technol, State Key Lab Intense Pulsed Radiat Simulat & Eff, Xian 710024, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yuan, Di,Guo, Yaozhen,Liu, Bo,et al. Directional light outcoupling enhancement of scintillators via hollow microlens arrays[J]. 中国科学院西北生态环境资源研究院,2021,232. |
| APA | Yuan, Di.,Guo, Yaozhen.,Liu, Bo.,Zhao, Jun.,Zhu, Zhichao.,...&Ouyang, Xiaoping.(2021).Directional light outcoupling enhancement of scintillators via hollow microlens arrays.JOURNAL OF LUMINESCENCE,232. |
| MLA | Yuan, Di,et al."Directional light outcoupling enhancement of scintillators via hollow microlens arrays".JOURNAL OF LUMINESCENCE 232(2021). |
| 条目包含的文件 | 条目无相关文件。 | |||||
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。
