Enhanced terahertz emission from impurity compensated GaSb

@article{Ascazubi2005EnhancedTE,
  title={Enhanced terahertz emission from impurity compensated GaSb},
  author={R. Ascazubi and C. Shneider and I. Wilke and R. Pino and P. Dutta},
  journal={Physical Review B},
  year={2005},
  volume={72},
  pages={045328}
}
We report femtosecond optically excited terahertz THz emission from tellurium doped GaSb at room temperature. The influence of the majority and minority carrier type and concentrations on the strength of the THz emission is investigated. Strong enhancement of THz emission in GaSb is observed as a result of compensation of native acceptors by tellurium donors. Surface field acceleration and the photo-Dember effect are identified as THz emission mechanisms in GaSb and modeled in dependence of the… Expand
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