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

Georgios Tsiminis, Yu Wang, Paul E. Shaw, A.L. Kanibolotsky, I.F. Perepichka, M.D. Dawson, P.J. Skabara, Graham A. Turnbull, Ifor D. W. Samuel

Research output: Contribution to journalArticle

84 Citations (Scopus)

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/cm(2) and broad tunability across 25 nm in the blue part of the spectrum.
LanguageEnglish
Article number243304
Number of pages3
JournalApplied Physics Letters
Volume94
Issue number24
DOIs
Publication statusPublished - 16 Jun 2009

Fingerprint

organic lasers
distributed feedback lasers
organic semiconductors
thresholds
spontaneous emission
ellipsometry
coating
lasing
semiconductor lasers
refractivity
waveguides
stars
anisotropy
molecules

Keywords

  • distributed feedback lasers
  • ellipsometry
  • laser tuning
  • optical losses
  • optical waveguides
  • organic semiconductors
  • refractive index
  • semiconductor lasers
  • spin coating
  • superradiance

Cite this

Tsiminis, G., Wang, Y., Shaw, P. E., Kanibolotsky, A. L., Perepichka, I. F., Dawson, M. D., ... Samuel, I. D. W. (2009). Low-threshold organic laser based on an oligofluorene truxene with low optical losses. Applied Physics Letters, 94(24), [243304]. https://doi.org/10.1063/1.3152782
Tsiminis, Georgios ; Wang, Yu ; Shaw, Paul E. ; Kanibolotsky, A.L. ; Perepichka, I.F. ; Dawson, M.D. ; Skabara, P.J. ; Turnbull, Graham A. ; Samuel, Ifor D. W. . / Low-threshold organic laser based on an oligofluorene truxene with low optical losses. In: Applied Physics Letters. 2009 ; Vol. 94, No. 24.
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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/cm(2) and broad tunability across 25 nm in the blue part of the spectrum.",
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Tsiminis, G, Wang, Y, Shaw, PE, Kanibolotsky, AL, Perepichka, IF, Dawson, MD, Skabara, PJ, Turnbull, GA & Samuel, IDW 2009, 'Low-threshold organic laser based on an oligofluorene truxene with low optical losses' Applied Physics Letters, vol. 94, no. 24, 243304. https://doi.org/10.1063/1.3152782

Low-threshold organic laser based on an oligofluorene truxene with low optical losses. / Tsiminis, Georgios; Wang, Yu; Shaw, Paul E.; Kanibolotsky, A.L.; Perepichka, I.F.; Dawson, M.D.; Skabara, P.J.; Turnbull, Graham A.; Samuel, Ifor D. W. .

In: Applied Physics Letters, Vol. 94, No. 24, 243304, 16.06.2009.

Research output: Contribution to journalArticle

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T1 - Low-threshold organic laser based on an oligofluorene truxene with low optical losses

AU - Tsiminis, Georgios

AU - Wang, Yu

AU - Shaw, Paul E.

AU - Kanibolotsky, A.L.

AU - Perepichka, I.F.

AU - Dawson, M.D.

AU - Skabara, P.J.

AU - Turnbull, Graham A.

AU - Samuel, Ifor D. W.

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Y1 - 2009/6/16

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AB - 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/cm(2) and broad tunability across 25 nm in the blue part of the spectrum.

KW - distributed feedback lasers

KW - ellipsometry

KW - laser tuning

KW - optical losses

KW - optical waveguides

KW - organic semiconductors

KW - refractive index

KW - semiconductor lasers

KW - spin coating

KW - superradiance

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