Optical spectroscopy with organic semiconductor lasers

Sönke Klinkhammer; Thomas Woggon; Christoph Vannahme; Ulf Geyer; Timo Mappes; Uli Lemmer

doi:10.1117/12.854785

18 May 2010 Optical spectroscopy with organic semiconductor lasers

Sönke Klinkhammer, Thomas Woggon, Christoph Vannahme, Ulf Geyer, Timo Mappes, Uli Lemmer

Proceedings Volume 7722, Organic Photonics IV; 77221I (2010) https://doi.org/10.1117/12.854785
Event: SPIE Photonics Europe, 2010, Brussels, Belgium

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.

Citation Download Citation

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

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