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Gallium nitride nanowire distributed feedback lasers

Wright, Jeremy B.; Campione, Salvatore; Liu, Sheng; Martinez, Julio A.; Xu, Huiwen; Luk, Ting S.; Li, Qiming; Wang, George T.; Swartzentruber, Brian; Brener, Igal

We have demonstrated single-mode lasing in a single gallium nitride nanowire using distributed feedback by external coupling to a dielectric grating. By adjusting the nanowire grating alignment we achieved a mode suppression ratio of 17dB.