Amplified Spontaneous Emission of Organic Pyridinium Dye doped Polymeric Waveguide  

作　　者：奚俊 叶莉华 王琼 徐登 吕昌贵 胡国华 崔一平 

机构地区：[1]Advanced Photonic Center, School of Electronic Science and Engineering, Southeast University, Nanjing 210096

出　　处：《Chinese Physics Letters》2009年第1期331-334,共4页中国物理快报（英文版）

摘　　要：An organic dye salt trans-4-[p-（N-hydroxyethyl-N-methylamino）styryl]-N-methylpyridinium iodide （ASPI） is doped with an electron transport organic molecule tris（8-hydroxyquinoline） aluminium （Alq3） in a host matrix of poly（methylmethacrylate） （PMMA）, and the amplified spontaneous emission （ASE） is studied. By efficient Forster energy transfer from Alq3 to ASPI, it is demonstrated that the ASE threshold of ASPI：Alq3：PMMA waveguide （about 11 μJ/pulse） is much lower than that of ASPI：PMMA system （about 38 μJ/pulse）. Meanwhile, the peak position of ASE can be controlled by the effect of film thickness on waveguide modes. We show that the ASE peak position can be tuned over 37nm. These characteristics indicate the ASPI：Alq3 system as a promising gain medium for optical amplifiers and organic semiconductor lasers.An organic dye salt trans-4-[p-（N-hydroxyethyl-N-methylamino）styryl]-N-methylpyridinium iodide （ASPI） is doped with an electron transport organic molecule tris（8-hydroxyquinoline） aluminium （Alq3） in a host matrix of poly（methylmethacrylate） （PMMA）, and the amplified spontaneous emission （ASE） is studied. By efficient Forster energy transfer from Alq3 to ASPI, it is demonstrated that the ASE threshold of ASPI：Alq3：PMMA waveguide （about 11 μJ/pulse） is much lower than that of ASPI：PMMA system （about 38 μJ/pulse）. Meanwhile, the peak position of ASE can be controlled by the effect of film thickness on waveguide modes. We show that the ASE peak position can be tuned over 37nm. These characteristics indicate the ASPI：Alq3 system as a promising gain medium for optical amplifiers and organic semiconductor lasers.

关 键 词：field emission molybdenum dioxide enhancement factor 

分 类 号：TN25[电子电信—物理电子学]