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M. Koschorreck, R. Gehlhaar, V. G. Lyssenko, M. Swoboda, M. Hoffmann, K. Leo, Dynamics of a High-Q Vertical-Cavity Organic Laser Appl. Phys. Lett. 87 (2005), 181108. | |
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| Abstract | |
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We investigate the dynamics of the organic laser guest-host composite of tris-(8-hydroxy quinoline) aluminium (Alq3) and 4-(dicyanomethylene)-2-methyl-6-(p-dimethylaminostyryl)-4H-pyran (DCM) embedded in a high-Q (Q ~ 4500) double distributed Bragg reflector microcavity (2DBR) using sub-picosecond up-conversion techniques. Lasing is observed at a threshold of 0.4 nJ/20 muJ/cm2 with a line-width of 0.05 nm (resolution limit). We observe a strongly nonlinear intensity-dependent delay of the emitted radiation burst. All experimental results are successfully modeled by a set of nonlinear rate equations, emphasizing the importance of a feedback mechanism for lasing.
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| DOI:10.1063/1.2125128 (direct link to publisher) | |
| pdf file of manuscript version | |
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homepage M. Hoffmann | |
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| last updated: M. Hoffmann, Dec 2007 |