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Monte Carlo study of impact ionization in n-type InAs induced by intense ultrashort terahertz pulses

  • Steponas Ašmontas
  • Romas Raguotis
  • Skaidra Bumelienė
Article
  • 54 Downloads

Abstract

Electron impact ionization induced in n-type InAs by single-cycle pulses of picosecond and subpicosecond duration has been investigated by Monte Carlo method. It is established that the rate of generation of electron–hole pairs decreases with the decrease of the pulse duration. The impact ionization threshold field is found to depend linearly on frequency for the fields oscillating at frequencies much higher than reciprocal momentum relaxation time. Good agreement between calculations and available experimental data has been obtained.

Keywords

InAs Impact ionization Terahertz Monte Carlo simulation 

Notes

Acknowledgements

We are sincerely thankful to prof. Jonas Gradauskas for stimulating discussions and critical reading of the manuscript.

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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2018

Authors and Affiliations

  • Steponas Ašmontas
    • 1
  • Romas Raguotis
    • 1
  • Skaidra Bumelienė
    • 1
  1. 1.Center fort Physical Sciences and TechnologyVilniusLithuania

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