Distributed feedback gallium nitride nanowire lasers

作者：Wright Jeremy B^*; Campione Salvatore; Liu Sheng; Martinez Julio A; Xu Huiwen; Luk Ting S; Li Qiming; Wang George T; Swartzentruber Brian S; Lester Luke F; Brener Igal

来源：Applied Physics Letters, 2014, 104(4): 041107.

DOI：10.1063/1.4862193

Achieving single-mode laser operation in nanowire lasers remains a challenge due to a lack of mode selection approaches. We have implemented single-mode lasing using distributed feedback by externally coupling gallium nitride nanowires to a dielectric grating to achieve mode-control. The effective periodicity of the grating experienced by the nanowire was altered using nanomanipulation to change the angular alignment between the nanowire and the grating. The effective periodicity controls the spectral location of the distributed feedback stop-band. Single-mode emission was achieved at an alignment, where the designed periodicity of the grating was experienced by the nanowire.

• 出版日期2014-1-27