Enhancement of spin-polarized electron emission from strain-compensated AlInGaAs-GaAsP superlattices

J. S. Roberts, Yu P. Yashin, Yu A. Mamaev, L. G. Gerchikov, T. Maruyama, D. A. Luh, J. E. Clendenin

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Resonance enhancement of the quantum efficiency of new polarized electron photocathodes based on a short-period strain-compensated AlInGaAs/GaAsP superlattice structure is reported. The superlattice is a part of an integrated Fabry-Perot optical cavity. We demonstrate that the Fabry-Perot resonator enhances the quantum efficiency by up to a factor 10 in the wavelength region of the main polarization maximum. The high structural quality implied by these results points to the very promising application of these photocathodes for spin-polarized electron sources.

Original languageEnglish
Title of host publicationProceedings of the 17th International Spin Physics Symposium
Pages1077-1080
Number of pages4
DOIs
StatePublished - 2007
Event17th International Spin Physics Symposium - Kyoto, Japan
Duration: 2 Oct 20067 Oct 2006

Publication series

NameAIP Conference Proceedings
Volume915
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference17th International Spin Physics Symposium
Country/TerritoryJapan
CityKyoto
Period2/10/067/10/06

Keywords

  • Enhancement
  • Fabry-Perot resonator
  • Quantum efficiency

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