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论文类型：期刊论文

发表时间：2009-05-01

发表刊物：JAPANESE JOURNAL OF APPLIED PHYSICS

收录刊物：SCIE、EI、Scopus

卷号：48

期号：5

页面范围：0521011-0521014

ISSN号：0021-4922

摘要：This paper presents optically pumped solid-state organic lasers based on tris(8-hydroxyquinoline) aluminum (Alq(3)) doped with the laser dye 4-(dicyanomethylene)-2-t-butyl-6(1,1,7,7-tetramethyljulolidy 1-9-enyl)-4H-pyran (DCJTB, 2wt%) using resonator which offers one dimensional distributed feedback. The lasers have been fabricated by deposition of organic films on top of suitable grating microstructures etched into SiN layer. The devices operating in the red spectral region are highly efficient and exhibit low threshold for oscillation (0.3 kW/cm(2)). The operating characteristics of the lasers are investigated in detail. The laser oscillation is obtained by optimizing the organic film thickness. The ratio of slot width to grating period is another important parameter to decrease the lasing threshold. (C) 2009 The Japan Society of Applied Physics