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Keywords:

  • Strong-Field Emission;
  • Ultrafast Phenomena;
  • Field Emitter Arrays

Strong-field photoemission from silicon field emitter arrays is investigated experimentally and results are explained using a “simple-man” optical-field emission model. Spectra are collected throughout an in-situ laser annealing process, leading to a red-shift in emitted electron energy along with an increase in electron yield. After the annealing process, a high energy plateau is formed which is explained through optical-field emission along with electron re-scattering with the tip surface.