Low-threshold organic laser based on an oligofluorene truxene with low optical losses

Tsiminis, Georgios, Wang, Yue, Shaw, Paul E., Kanibolotsky, Alexander L., Perepichka, Igor F., Dawson, Martin D., Skabara, Peter J, and Samuel, Ifor D. W. (2009) Low-threshold organic laser based on an oligofluorene truxene with low optical losses. Applied Physics Letters, 94 24: 243304 - 1-243304 - 3. doi:10.1063/1.3152782

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Author Tsiminis, Georgios
Wang, Yue
Shaw, Paul E.
Kanibolotsky, Alexander L.
Perepichka, Igor F.
Dawson, Martin D.
Skabara, Peter J,
Samuel, Ifor D. W.
Title Low-threshold organic laser based on an oligofluorene truxene with low optical losses
Journal name Applied Physics Letters   Check publisher's open access policy
ISSN 0003-6951
Publication date 2009-06
Sub-type Article (original research)
DOI 10.1063/1.3152782
Open Access Status File (Publisher version)
Volume 94
Issue 24
Start page 243304 - 1
End page 243304 - 3
Total pages 3
Place of publication College Park, MD, United States
Publisher American Institute of Physics
Language eng
Abstract A blue-emitting distributed feedback laser based on a star-shaped oligofluorene truxene molecule is presented. The gain, loss, refractive index, and (lack of) anisotropy are measured by amplified spontaneous emission and variable-angle ellipsometry. The waveguide losses are very low for an organic semiconductor gain medium, particularly for a neat film. The results suggest that truxenes are promising for reducing loss, a key parameter in the operation of organic semiconductor lasers. Distributed feedback lasers fabricated from solution by spin-coating show a low lasing threshold of 270 W/ cm2 and broad tunability across 25 nm in the blue part of the spectrum.
Keyword distributed feedback lasers
laser tuning
optical losses
optical waveguides
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collection: School of Chemistry and Molecular Biosciences
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Citation counts: TR Web of Science Citation Count  Cited 56 times in Thomson Reuters Web of Science Article | Citations
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