Optically pumped surface-emitting lasing using self-assembled block-copolymer-distributed Bragg reflectors
Optically pumped surface-emitting lasing using self-assembled block-copolymer-distributed Bragg reflectors
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DOI：
10.1021/nl061490h
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发表时间：
2006-10-11
期刊：
影响因子：
10.8
通讯作者：
Thomas, Edwin L.
中科院分区：
文献类型：
--
作者：
Yoon, Jongseung;Lee, Wonmok;Thomas, Edwin L.
采用嵌段共聚物一维光子晶体制作了薄膜有机激光腔。通过自组装层状结构的聚苯乙烯-b-异戊二烯（PS-b-PI）二嵌段共聚物，制备了具有与增益介质荧光光谱重叠的一维光子阻带的聚合物分布布拉格反射器（DBR）。以1，4-二（2-甲基苯乙烯基）苯（Bis-MSB）掺杂的聚甲基丙烯酸甲酯（PMMA）为有机增益介质，聚合物自组装DBR为波段选择性反馈元件，获得了光泵浦面发射激光。
A thin-film organic laser cavity using a block-copolymer-based one-dimensional (1D) photonic crystal was fabricated. Polymeric distributed Bragg reflectors (DBRs) were prepared through the self-assembly of a lamellar-forming poly(styrene-b-isoprene) (PS-b-PI) diblock copolymer having a 1D photonic stop band overlapping with the fluorescence spectrum of a gain medium. Optically pumped surface-emitting lasing was obtained using poly( methyl methacrylate) (PMMA) doped with 1,4-di-(2-methylstyryl)benzene (Bis-MSB) as an organic gain medium and the polymeric self-assembled DBR as a spectral-band selective feedback element.