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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 18, Iss. 6 — Mar. 15, 2010
  • pp: 5890–5895

Intermediate high index layer for laser mode tuning in organic semiconductor lasers

M. Stroisch, T. Woggon, C. Teiwes-Morin, S. Klinkhammer, K. Forberich, A. Gombert, M. Gerken, and U. Lemmer  »View Author Affiliations


Optics Express, Vol. 18, Issue 6, pp. 5890-5895 (2010)
http://dx.doi.org/10.1364/OE.18.005890


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Abstract

We modified the optical properties of organic semiconductor distributed feedback lasers by introducing a high refractive index layer consisting of tantalum pentoxide between the substrate and the active material layer. A thin film of tris-(8-hydroxyquinoline) aluminium doped with the laser dye 4-dicyanomethylene-2-methyl-6-(p-dimethylamino-styryl)-4H-pyran was used as the active layer. By varying the intermediate layer thickness we could change the effective refractive index of the guided laser mode and thus the laser wavelength. With this technique we were able to tune the laser emission range between 613 nm and 667 nm. For high index layer thicknesses higher than 40 nm the laser operated on the TE1-mode rather than the fundamental TE0-mode.

© 2010 OSA

OCIS Codes
(050.7330) Diffraction and gratings : Volume gratings
(140.3390) Lasers and laser optics : Laser materials processing
(140.3490) Lasers and laser optics : Lasers, distributed-feedback
(140.5960) Lasers and laser optics : Semiconductor lasers
(140.7300) Lasers and laser optics : Visible lasers
(160.4890) Materials : Organic materials

ToC Category:
Lasers and Laser Optics

History
Original Manuscript: August 21, 2009
Revised Manuscript: January 8, 2010
Manuscript Accepted: January 25, 2010
Published: March 10, 2010

Citation
M. Stroisch, T. Woggon, C. Teiwes-Morin, S. Klinkhammer, K. Forberich, A. Gombert, M. Gerken, and U. Lemmer, "Intermediate high index layer for laser mode tuning in organic semiconductor lasers," Opt. Express 18, 5890-5895 (2010)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-18-6-5890


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References

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