Lasing action in an electrically pumped organic laser device is demonstrated with a high quality factor $\left(Q\right)$ microcavity structure formed by two high-reflective and low-loss electrical contacts. A 4-(dicyanomethylene)-2-i-propyl-6-(1,1,7,7-tetramethyljulolidyl-9-enyl)- $4H$ -pyran-doped tris(8-hydroxy- quinoline)aluminum $\left(\mathrm{Al}{\mathrm{q}}_3\right)$ film serves as the active layer. A single longitudinal lasing cavity mode is obtained at $621.7\mathrm{nm}$ with a threshold current density of $860\mathrm{mA}∕{\mathrm{cm}}^2$ under a room temperature pulse operation.

© 2009 Optical Society of America

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