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Keywords:

  • Amplified spontaneous emission (ASE);
  • Distributed feedback (DFB) lasers;
  • Lasers, organic solid state

Abstract

Thin-film organic solid-state lasers operating in the ultraviolet wavelength region are fabricated using a novel spiro-linked material as active organic layer in an optically pumped distributed feedback (DFB) structure in work reported by Riedl and co-workers on p. 31. The laser wavelength is tunable between 377.7 nm and 395 nm, the shortest laser wavelength reported so far for thin-film organic solid-state lasers. The lasers' suitability for spectroscopic applications was tested by use as an excitation source for solutions containing the common fluorescent dyes Coumarin 6, Coumarin 152, and Rhodamine 6G.