Tunability of the terahertz space-charge modulation in a vacuum microdiode

@article{Jnsson2013TunabilityOT,
  title={Tunability of the terahertz space-charge modulation in a vacuum microdiode},
  author={P. J{\'o}nsson and M. Ilkov and A. Manolescu and A. Pedersen and A. Valfells},
  journal={Physics of Plasmas},
  year={2013},
  volume={20},
  pages={023107}
}
Under certain conditions, space-charge limited emission in vacuum microdiodes manifests as clearly defined bunches of charge with a regular size and interval. The frequency corresponding to this interval is in the terahertz range. In this computational study, it is demonstrated that, for a range of parameters, conducive to generating THz frequency oscillations, the frequency is dependant only on the cold cathode electric field and on the emitter area. For a planar micro-diode of given dimension… Expand
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