Zhang Dingke, Ma Dongge
State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Graduate School of Chinese Academy of Sciences, Changchun 130022, China.
Appl Opt. 2007 May 20;46(15):2996-3000. doi: 10.1364/ao.46.002996.
Amplified spontaneous emission (ASE) characteristics of a red fluorescent dye, 4-(dicy-anomethylene)-2-t-butyl-6(1,1,7,7-tetramethyljulolidyl-9-enyl)-4H-pyran (DCJTB), and a green fluorescent dye, (10-(2-benzothiazolyl)-1,1,7,7-tetramethyl-2,3,6,7-tetrahydro-1H,5H,11H-[1] benzopyrano [6,7,8-ij]quinolizin-11-one) (C545T) codoped polystyrene (PS) as the active medium were studied. It was found that the performance of ASE is greatly improved due to the introduction of C545T. By optimizing the concentrations of C545T and DCJTB in PS, an ASE threshold of 0.016 mJ pulse(-1), net gain of 52.71 cm(-1), and loss of 11.7 cm(-1) were obtained. The efficient Förster energy transfer from C545T to DCJTB was used to explain the improvement of the ASE performance in the coguest system.
研究了红色荧光染料4-（二氰基亚甲基）-2-叔丁基-6（1,1,7,7-四甲基久洛尼啶-9-烯基）-4H-吡喃（DCJTB）和绿色荧光染料（10-（2-苯并噻唑基）-1,1,7,7-四甲基-2,3,6,7-四氢-1H,5H,11H-[1]苯并吡喃并[6,7,8-ij]喹嗪-11-酮）（C545T）共掺杂聚苯乙烯（PS）作为活性介质的放大自发辐射（ASE）特性。发现由于引入C545T，ASE的性能得到了极大改善。通过优化PS中C545T和DCJTB的浓度，获得了0.016 mJ脉冲（-1）的ASE阈值、52.71 cm（-1）的净增益和11.7 cm（-1）的损耗。利用从C545T到DCJTB的高效福斯特能量转移来解释共客体系统中ASE性能的改善。
