Infrared Photocathode

Abstract

The technical objective of this program is the development of an efficient photocathode for the 1.5 micron region of the infrared spectrum. No such photocathode exists today. The concept of the heterojunction photocathode proposed earlier, represented a new approach to the development of an infrared cathode. Continued development of infrared cathodes on this project has led to photocathodes having, for the first time, usable response out to 1.3 microns. Results on the long-wave-length photoemission from 'heterojunction-type' cathodes are summarized. The escape probability, which is the major determining factor in the efficiency of these cathodes is calculated and compared to the experimental data out to 1.4 microns.

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Document Details

Document Type
Technical Report
Publication Date
Dec 31, 1971
Accession Number
AD0764100

Entities

People

  • H. Sonnenberg

Organizations

  • Sylvania Electric Products

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Absorption Coefficients
  • Band Structures
  • Bulk Materials
  • Coefficients
  • Conduction Bands
  • Contracts
  • Efficiency
  • Electron Energy
  • Electrons
  • Energy Bands
  • Materials
  • Measurement
  • Monomolecular Films
  • Photoelectric Emission
  • Quantum Efficiency
  • Scattering
  • Work Functions

Fields of Study

  • Physics

Readers

  • Human-Computer Interaction (HCI).
  • Semiconductor Device Technology
  • Systems Analysis and Design