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This work presents the application of organic semiconductor distributed feedback laser as free-space excitation source in Raman spectroscopy. Surface-enhanced Raman scattering effect is exploited to improve the detection sensitivity. The SERS conditionis achiedved by using substrates consisting of gold-coated polymeric nanopillar arrays. The organic-laser-excited SERS measurements are applied to verify the concentration variation of biomolecule adenosine in aqueous solutions.

Lab-on-Chiporganic semiconductor --- lab-on-a-chip --- oberflächenverstärkte Raman-Spektroskopie --- Organischer Halbleiter --- DFB-laser --- DFB-Laser --- surface-enhanced Raman spectroscopy