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Emission polarization of random lasers in organic dye solutions
Sebastian Knitter1, Michael Kues, Carsten Fallnich
1Institute of Applied Physics, University of Münster, Münster, Germany. sebastian.knitter@uni-muenster.de
Abstract:
This Letter presents a polarimetric study of the emission of random lasers from organic dyes. Coherent lasing modes from samples with ethanol solvent showed a high degree of polarization and did not influence each other in polarization. The proper choice of a laser dye with asymmetric absorption momenta, a highly viscous solvent, and a linear pump polarization can cause the random lasing emission to be completely linearly polarized for all wavelengths within the amplification range.
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