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

Abstract

Optically pumped organic semiconductor lasers are fabricated by evaporation of a thin film of tris(8-hydroxyquinoline) aluminum $\left({\mathrm{Alq}}_3\right)$ 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 ($\approx 10 \mathrm{cm}$ long). This concept opens up a way to obtain inexpensive lasers that are tunable over the whole visible range.

© 2001 Optical Society of America

Continuously tunable solution-processed organic semiconductor DFB lasers pumped by laser diode

Sönke Klinkhammer, Xin Liu, Klaus Huska, Yuxin Shen, Sylvia Vanderheiden, Sebastian Valouch, Christoph Vannahme, Stefan Bräse, Timo Mappes, and Uli Lemmer
Opt. Express 20(6) 6357-6364 (2012)

Organic semiconductor distributed feedback laser fabricated by direct laser interference ablation

M. Stroisch, T. Woggon, U. Lemmer, G. Bastian, G. Violakis, and S. Pissadakis
Opt. Express 15(7) 3968-3973 (2007)

Emission properties of printed organic semiconductor lasers

Dario Pisignano, Luana Persano, Elisa Mele, Paolo Visconti, Roberto Cingolani, Giuseppe Gigli, Giovanna Barbarella, and Laura Favaretto
Opt. Lett. 30(3) 260-262 (2005)

Shape-memory polymers as flexible resonator substrates for continuously tunable organic DFB lasers

Senta Schauer, Xin Liu, Matthias Worgull, Uli Lemmer, and Hendrik Hölscher
Opt. Mater. Express 5(3) 576-584 (2015)

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
Opt. Express 18(6) 5890-5895 (2010)