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

Georgios Tsiminis; Yue Wang; Paul E. Shaw; Alexander L. Kanibolotsky; Igor F. Perepichka; Martin D. Dawson; Peter J. Skabara; Graham A. Turnbull; Ifor D W Samuel

doi:10.1063/1.3152782

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

Georgios Tsiminis, Yue Wang, Paul E. Shaw, Alexander L. Kanibolotsky, Igor F. Perepichka, Martin D. Dawson, Peter J. Skabara, Graham A. Turnbull, Ifor D W Samuel

Physics

Research output: Contribution to journal › Article › peer-review

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.

Original language	English
Article number	243304
Journal	Applied Physics Letters
Volume	94
Issue number	24
DOIs	https://doi.org/10.1063/1.3152782
Publication status	Published - 29 Jun 2009

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title = "Low-threshold organic laser based on an oligofluorene truxene with low optical losses",

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.",

author = "Georgios Tsiminis and Yue Wang and Shaw, {Paul E.} and Kanibolotsky, {Alexander L.} and Perepichka, {Igor F.} and Dawson, {Martin D.} and Skabara, {Peter J.} and Turnbull, {Graham A.} and Samuel, {Ifor D W}",

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AU - Tsiminis, Georgios

AU - Wang, Yue

AU - Shaw, Paul E.

AU - Kanibolotsky, Alexander L.

AU - Perepichka, Igor F.

AU - Dawson, Martin D.

AU - Skabara, Peter J.

AU - Turnbull, Graham A.

AU - Samuel, Ifor D W

PY - 2009/6/29

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

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