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Optics Letters

Optics Letters


  • Vol. 26, Iss. 9 — May. 1, 2001
  • pp: 593–595

Very compact tunable solid-state laser utilizing a thin-film organic semiconductor

S. Riechel, U. Lemmer, J. Feldmann, S. Berleb, A. G. Mückl, W. Brütting, A. Gombert, and V. Wittwer  »View Author Affiliations

Optics Letters, Vol. 26, Issue 9, pp. 593-595 (2001)

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Optically pumped organic semiconductor lasers are fabricated by evaporation of a thin film of tris(8-hydroxyquinoline) aluminum (Alq3) molecularly doped with a laser dye on top of a polyester substrate with an embossed grating structure. We achieve low-threshold, longitudinally monomode distributed-feedback laser operation. By varying the film thickness of the organic semiconductor film, we can tune the wavelength of the surface-emitting laser over 44 nm. The low laser threshold allows the use of a very compact all-solid-state pump laser (≈10 cm long). This concept opens up a way to obtain inexpensive lasers that are tunable over the whole visible range.

© 2001 Optical Society of America

OCIS Codes
(140.3490) Lasers and laser optics : Lasers, distributed-feedback
(140.3600) Lasers and laser optics : Lasers, tunable
(140.7300) Lasers and laser optics : Visible lasers
(160.4890) Materials : Organic materials
(250.3680) Optoelectronics : Light-emitting polymers
(250.7270) Optoelectronics : Vertical emitting lasers

S. Riechel, U. Lemmer, J. Feldmann, S. Berleb, A. G. Mückl, W. Brütting, A. Gombert, and V. Wittwer, "Very compact tunable solid-state laser utilizing a thin-film organic semiconductor," Opt. Lett. 26, 593-595 (2001)

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