%0 Journal Article %T Tunable circularly polarized lasing emission inreflection distributed feedback dye lasers %+ Propriétés Optiques des Matériaux et Applications (POMA) %A Chen, Fei %A Gindre, Denis %A Nunzi, Jean-Michel %< avec comité de lecture %@ 1094-4087 %J Optics Express %I Optical Society of America - OSA Publishing %V 16 %N 21 %P 16746 - 16753 %8 2008 %D 2008 %R 10.1364/OE.16.016746 %K Dye lasers %K Lasers %K distributed-feedback %K Polarization %K Reflection %Z Life Sciences [q-bio]Journal articles %X

A tunable circularly polarized distributed feedback (DFB) laser based on reflection grating configuration was realized in a solution of 4-(dicyanomethylene)-2-methyl-6-(4-dimethylaminostyryl)-4H-pyran (DCM) doped methanol. Chiral photonic DFB structures with tunable photonic bandgap were generated by controlling the state of polarization of the two interfering pump beams. The dual-peak lasing emission spectrum indicates that the periodic chiral DFB grating is affected by a combination of modulations of gain and refractive index.

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