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A polythiophene microcavity laser
Linköping University, Department of Physics, Chemistry and Biology, Applied Physics. Linköping University, The Institute of Technology.
Linköping University, Department of Physics, Chemistry and Biology, Applied Physics. Linköping University, The Institute of Technology.
Linköping University, Department of Physics, Chemistry and Biology, Applied Physics. Linköping University, The Institute of Technology.ORCID iD: 0000-0001-5154-0291
Chalmers Tekniska Högskola.
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1998 (English)In: Chemical Physics Letters, ISSN 0009-2614, E-ISSN 1873-4448, Vol. 288, no 5-6, 879-884 p.Article in journal (Refereed) Published
Abstract [en]

We report photopumped lasing in a microcavity device with a polythiophene layer as the emitter. These microcavity devices are built by joining two polymer coated dielectric mirrors at elevated temperature. When photopumping the film, a lasing threshold is observed at 120 nJ/cm(2). Comparative studies with fast pump-probe spectroscopy of thin polythiophene films and the same polymer in photopumped lasing studies, indicate that the gain coefficient is 80 +/- 20 cm(-1), and that the exciton concentration is 2 X 10(17) cm(-3) at the lasing transition, well below the exciton-exciton recombination level. (C) 1998 Elsevier Science B.V. All rights reserved.

Place, publisher, year, edition, pages
Elsevier , 1998. Vol. 288, no 5-6, 879-884 p.
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Engineering and Technology
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URN: urn:nbn:se:liu:diva-74870DOI: 10.1016/S0009-2614(98)00320-0ISI: 000074285700043OAI: oai:DiVA.org:liu-74870DiVA: diva2:496795
Available from: 2012-02-10 Created: 2012-02-10 Last updated: 2017-12-07

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Berggren, MagnusInganäs, Olle

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