Laser modes in organic solid-state distributed feedback lasers
| Autor: | Uli Lemmer, S. Riechel, Volker Wittwer, Wolfgang Kowalsky, Ullrich Scherf, Jochen Feldmann, T. Benstem, Andreas Gombert |
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| Rok vydání: | 2000 |
| Předmět: |
Distributed feedback laser
Materials science Physics and Astronomy (miscellaneous) business.industry technology industry and agriculture General Engineering General Physics and Astronomy Laser pumping Electroluminescence Laser law.invention Organic semiconductor Optics law Diode-pumped solid-state laser Optoelectronics Thin film business Tunable laser |
| Zdroj: | Applied Physics B. 71:897-900 |
| ISSN: | 1432-0649 0946-2171 |
| DOI: | 10.1007/s003400000467 |
| Popis: | We report on the laser modes in optically pumped solid-state lasers using an electroluminescent organic semiconductor as the active medium. Mechanically flexible distributed-feedback lasers are fabricated by depositing a thin film of an active material onto a nano-patterned polyester substrate either via spin-coating of a soluble ladder-type poly(p-phenylene) or via vacuum co-sublimation of small organic molecules. The different surface texture resulting from the fabrication process causes different feedback mechanisms. In both lasers higher lateral modes give rise to a broadening of the laser spectra at higher pumping levels. |
| Databáze: | OpenAIRE |
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