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Keywords:

  • stimulated resonance raman scattering;
  • laser oscillations;
  • amplified spontaneous emission;
  • polarization;
  • crystal structure;
  • π-conjugated molecular crystals
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Three-in-one: A novel distyrylbenzene-based material forms J-type aggregates in single crystals with highly polarized and bright red emission, giving rise to optical gain narrowing, for which different mechanisms (amplified spontaneous emission, laser emission and stimulated resonance Raman scattering) are observed. These are correlated with the favorable intrinsic and macroscopic properties of the crystal, in particular to the orientation of the molecules to the crystal surface.