Waveguiding performance of rhodamine 6G doped polymer nanowire

We report waveguiding performance and guide loss both of straight and bent dye doped polymer nanowires. We also demonstrate Rhodamine 6 G Doped Polymer nanowires with diameter of 500 nm, which were fabricated into self-coupled resonator. Single-mode lasing peak centered at 542.2 nm was obtained in the spectrum. The self-coupled resonators perform better mode selection compared with the linear structure nanowires, which can be utilized to realize tunable laser systems and enhance the coupling efficiency of emission in ultra-small resonators.