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1.中国科学院长春光学精密机械与物理研究所 发光学及应用国家重点实验室, 吉林 长春 130033
2.中国科学院大学, 北京 100049
[ "于猛(1996-),男,辽宁葫芦岛人,硕士研究生,2019年于长春理工大学获得学士学位,主要从事布洛赫表面波器件的制备及性质的研究。yumeng20@mails.ucas.ac.cn " ]
[ "吕营(1986-),女,吉林省吉林市人,博士,副研究员,2013年于吉林大学获得博士学位,主要从事电致变色智能光学材料、器件及应用的研究。lvying@ciomp.ac.cn " ]
[ "刘星元(1970-),男,黑龙江伊春人,博士,研究员,1999年于中国科学院长春物理研究所获得博士学位,主要从事微腔光电子技术方面的研究。liuxy@ciomp.ac.cn " ]
纸质出版日期:2023-09-05,
收稿日期:2023-04-28,
修回日期:2023-05-06,
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于猛,吕营,邹德月等.基于布洛赫表面波的有机薄膜方向性发光性能[J].发光学报,2023,44(09):1521-1526.
YU Meng,LYU Ying,ZOU Deyue,et al.Directional Luminescence Properties of Organic Thin Film Based on Bloch Surface Waves[J].Chinese Journal of Luminescence,2023,44(09):1521-1526.
于猛,吕营,邹德月等.基于布洛赫表面波的有机薄膜方向性发光性能[J].发光学报,2023,44(09):1521-1526. DOI: 10.37188/CJL.20230116.
YU Meng,LYU Ying,ZOU Deyue,et al.Directional Luminescence Properties of Organic Thin Film Based on Bloch Surface Waves[J].Chinese Journal of Luminescence,2023,44(09):1521-1526. DOI: 10.37188/CJL.20230116.
布洛赫表面波(BSW)是光场局域在光子晶体表面层并沿着表面传播的一种电磁模式。本文在一维光子晶体上制备了PS∶C545T有机发光层,观察到了有机小分子C545T的激子耦合进BSW模式的荧光。通过对半球透镜耦合输出光斑的发光性能研究,分析比较了C545T的常规发光和BSW模式发光的不同特点。结果表明,BSW模式耦合输出环形的光斑,其荧光具有很窄的空间分布、线偏振和光谱角度可调的特性,并与常规辐射模式的光斑明显分离。一维光子晶体上的发光薄膜的辐射跃迁速率存在各向异性的现象,其中BSW模式的荧光具有更快的辐射跃迁速率。利用BSW的上述发光特点有助于开发具有一定方向性的偏振发光器件。
Bloch surface wave (BSW) is an electromagnetic mode in which the light field is localized in the surface layer and propagates along the surface layer of the photonic crystal. In this paper, a PS∶C545T organic luminescence layer was prepared on a one-dimensional photonic crystal, and the fluorescence of the exciton of organic C545T molecules coupled into the BSW mode was observed. By studying the performance of the output light emission of the sample through the hemispherical lens coupling, different characteristics of the conventional luminescence and the BSW mode luminescence of C545T are analyzed and compared. The results show that the coupled BSW mode outputs a ring light spot, which has the characteristics of narrow spatial distribution, linear polarization and adjustable spectral with angle, and is obviously separated from the light spot of the conventional radiation mode. The radiation transition rate of luminous films on one-dimensional photonic crystals is anisotropic, and the BSW mode fluorescence has a faster radiation transition rate. The above luminescence characteristics of BSW mode can be utilized to develop polarized light-emitting devices with certain directivity.
布洛赫表面波有机材料偏振角分布一维光子晶体
Bloch surface waveorganic materialspolarizationangular distributionone-dimensional photonic crystal
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