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Lasing in substitut...
Lasing in substituted polythiophene between dielectric mirrors
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- Granlund, Thomas (author)
- Linköpings universitet,Tillämpad Fysik,Tekniska högskolan
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- Theander, Mathias (author)
- Linköpings universitet,Tillämpad Fysik,Tekniska högskolan
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- Berggren, Magnus (author)
- Linköpings universitet,Tillämpad Fysik,Tekniska högskolan
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- Andersson, Mats (author)
- Chalmers Tekniska Högskola
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- Ruzeckas, A (author)
- Lunds universitet
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- Sundström, V (author)
- Lunds universitet
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- Björk, G (author)
- KTH
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- Granström, Magnus (author)
- Linköpings universitet,Tillämpad Fysik,Tekniska högskolan
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- Inganäs, Olle (author)
- Linköpings universitet,Tillämpad Fysik,Tekniska högskolan
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(creator_code:org_t)
- Elsevier, 1999
- 1999
- English.
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In: Synthetic metals. - : Elsevier. - 0379-6779 .- 1879-3290. ; 102:1-3, s. 1038-1041
- Related links:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Subject headings
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- We report photopumped lasing in a microcavity device with a polythiophene layer as emitter. The microcavity is made of a polymer film between two dielectric Bragg reflecting mirrors (DBR). The:microcavity devices is built by joining two polymer coated DBR 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(2) and that the exciton concentration is 2X10(17) cm(2) at the lasing transition, well below the exciton-exciton recombination level.
Keyword
- laser; microcavity; photopumped; polymer; polythiophene
- TECHNOLOGY
- TEKNIKVETENSKAP
Publication and Content Type
- ref (subject category)
- art (subject category)
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