6533b823fe1ef96bd127f3d6
RESEARCH PRODUCT
Spin polarized electron transport and partial localization of photoelectrons in highly doped photocathodes
Yu. P. YashinLeonid G. GerchikovE. J. RiehnYu. A. MamaevKurt Aulenbachersubject
PhysicsHistorySpin polarizationElectron capturebusiness.industryElectronPhotocathodeElectron localization functionCathodeComputer Science ApplicationsEducationlaw.inventionPhotoexcitationSemiconductorlawAtomic physicsbusinessdescription
The results of experimental and theoretical studies of spin polarized electron transport in semiconductor SL used for photoemitter application are presented. The experimental study is based on the time resolved measurements of electron emission from the cathode after its photoexcitation by fs laser pulse. The response and spin relaxation times have been determined by means of measured time dependent intensity and polarization of electron emission. We also performed theoretical calculations of photocathode pulse response and compared the obtained results with experimental data. Our analysis testifies the presence of partial electron localization in SL. Electron capture by localized states leads to unavoidable losses of quantum efficiency and polarization.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2011-05-01 | Journal of Physics: Conference Series |