Yoon Jongseung, Lee Wonmok, Thomas Edwin L
Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA.
Nano Lett. 2006 Oct;6(10):2211-4. doi: 10.1021/nl061490h.
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.
制造了一种使用基于嵌段共聚物的一维（1D）光子晶体的薄膜有机激光腔。通过具有与增益介质荧光光谱重叠的一维光子禁带的层状形成聚（苯乙烯 - b - 异戊二烯）（PS - b - PI）二嵌段共聚物的自组装制备聚合物分布式布拉格反射器（DBR）。使用掺杂有1,4 - 二 - （2 - 甲基苯乙烯基）苯（双 - MSB）的聚甲基丙烯酸甲酯（PMMA）作为有机增益介质，并将聚合物自组装DBR作为光谱带选择性反馈元件，获得了光泵浦表面发射激光。
