Ultrafast all-optical gated amplifier based on ZnO nanowire lasing

  title={Ultrafast all-optical gated amplifier based on ZnO nanowire lasing},
  author={Marijn A M Versteegh and P.J.S. van Capel and Jaap I. Dijkhuis},
  journal={Applied Physics Letters},
We present an ultrafast all-optical gated amplifier, or transistor, consisting of a forest of ZnO nanowire lasers. A gate light pulse creates a dense electron-hole plasma and excites laser action inside the nanowires. Source light traversing the nanolaser forest is amplified, partly as it is guided through the nanowires, and partly as it propagates diffusively through the forest. We have measured transmission increases at the drain up to a factor 34 for 385-nm light. Time-resolved amplification… 

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