Low-threshold polymeric distributed feedback lasers with metallic contacts

Autor:	S. Riechel, D. Schneider, Andreas Gombert, John M. Lupton, Thomas Dobbertin, Uli Lemmer, Wolfgang Kowalsky, M. Reufer, Ullrich Scherf, Jochen Feldmann, T. Benstem, Volker Wittwer, Karen Forberich
Přispěvatelé:	Publica
Rok vydání:	2004
Předmět:	Distributed feedback laser Materials science Organic laser Physics and Astronomy (miscellaneous) business.industry Electrode Optoelectronics Semiconductor optical gain business Lasing threshold Tunable laser Leakage (electronics) Semiconductor laser theory
Zdroj:	Applied Physics Letters. 84:3262-3264
ISSN:	1077-3118 0003-6951
DOI:	10.1063/1.1712029
Popis:	Optical losses in waveguides comprising metallic contacts are thought to be a major hurdle to the realization of organic laser diodes. We demonstrate here that careful tuning of the waveguide mode in flexible distributed feedback lasers can allow lasing action to occur in organic thin films in the presence of contacting electrodes with virtually no difference when compared to metal free devices. A metallic electrode is most suited as the bottom contact between the polymer and the substrate as it reduces mode leakage into the substrate and enhances modal gain. In contrast, a thin transparent electrode such as a metal oxide is preferable for the top electrode, where confinement is not a problem.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f9a90eb56399ca734f617fa5fe8e2aac https://doi.org/10.1063/1.1712029 Zobrazit plný text záznamu