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Proceedings Article

Optical spectroscopy with organic semiconductor lasers

[+] Author Affiliations
Sönke Klinkhammer, Thomas Woggon, Christoph Vannahme, Timo Mappes, Uli Lemmer

Karlsruhe Institute of Technology (Germany)

Ulf Geyer

Karlsruhe Institute of Technology (Germany) and Christian-Albrechts-Univ. Kiel (Germany)

Proc. SPIE 7722, Organic Photonics IV, 77221I (May 18, 2010); doi:10.1117/12.854785
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From Conference Volume 7722

  • Organic Photonics IV
  • Paul L. Heremans; Reinder Coehoorn; Chihaya Adachi
  • Brussels, Belgium | April 12, 2010

abstract

We report on the fabrication of large-scale surface gratings by laser interference lithography and reactive ion etching on which we evaporated a thin film of the organic semiconductor tris(8-hydroxyquinoline) aluminum doped with the laser dye 4-dicyanomethylene-2-methyl-6-(p-dimethylaminostyril)-4H-pyrane. We created a thickness gradient by using a rotating shadow mask evaporation technique. This allowed us to continuously tune the emission wavelength from 606 nm to 661 nm on a single substrate. After encapsulation, we demonstrated the usefulness of such low-cost and tunable organic semiconductor lasers by conducting simple fluorescence excitation and transmission spectroscopy measurements using a minimal amount of additional optical components.

© (2010) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
Citation

Sönke Klinkhammer ; Thomas Woggon ; Christoph Vannahme ; Ulf Geyer ; Timo Mappes, et al.
"Optical spectroscopy with organic semiconductor lasers", Proc. SPIE 7722, Organic Photonics IV, 77221I (May 18, 2010); doi:10.1117/12.854785; http://dx.doi.org/10.1117/12.854785


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