Print Email Facebook Twitter From amplified spontaneous emission to laser oscillation: Dynamics in a short-cavity polymer laser Title From amplified spontaneous emission to laser oscillation: Dynamics in a short-cavity polymer laser Author van den Berg, S.A. van Schoonderwoerd-den Bezemer, R.H. Schoo, H.F.M. t' Hooft, G.W. Eliel, E.R. TNO Industrie Publication year 1999 Abstract We present an experimental study of the input-output characteristics of an ultrashort pumped π-conjugated polymer in solution. By comparing the results for configurations with zero, one, and two mirrors around the polymer, we show that the physics is driven by amplified spontaneous emission and not by cooperative emission. This finding is substantiated by picosecond-time-scale measurements of the evolution of the emission of the polymer. For the two-mirror configuration a sharply defined threshold for laser oscillation is found; the output of the laser exhibits strong pulsations. © 1999 Optical Society of America. Subject Electronics To reference this document use: http://resolver.tudelft.nl/uuid:6c019852-101c-48ac-8e1c-ea10f43e4cfe TNO identifier 280430 ISSN 0146-9592 Source Optics Letters, 24 (24), 1847-1849 Document type article Files To receive the publication files, please send an e-mail request to TNO Library.