THz Radiation Source through Periodically Modulated Structures.

Abstract

For the first time the technique of Hot Electron Spectroscopy is applied to the study of superlattice transport. Direct current spectroscopy of minibands in a field free, undoped superlattice is demonstrated. Miniband transport through the first and second miniband of three superlattices with different well widths as a function of the hot electron injection energy is observed. The obtained miniband widths and positions agree very well with theoretical calculation. The structure described in this work gives the highest energy resolution reported so far for electron current spectroscopy. A transfer ration of about 25% is obtained with the chosen transistor structure, giving an optimistic outlook for injection structures.

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Document Details

Document Type
Technical Report
Publication Date
Aug 01, 1996
Accession Number
ADA324391

Entities

People

  • Erich Gornik

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Electron Beams
  • Electron Spectroscopy
  • Electronic States
  • Electrons
  • Energy Bands
  • Heterojunctions
  • Quantum Wells
  • Quantum Wires
  • Radiation
  • Semiconductor Devices
  • Semiconductors
  • Spectroscopy
  • Superlattices
  • Transistors
  • Transport Ships

Fields of Study

  • Materials science
  • Physics

Readers

  • Educational Psychology
  • Quantum Dot Semiconductor Device Photonics and Graphene Optoelectronic Materials and THz Physics.
  • Spectroscopy.

Technology Areas

  • Microelectronics