Nuclear polarization of phosphorus donors in 28Si by selective optical pumping

A. Yang, M. Steger, M. L.W. Thewalt, T. D. Ladd, K. M. Itoh, E. E. Haller, J. W. Ager, H. Riemann, N. V. Abrosimov, P. Becker, H. J. Pohl

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)


We show that significant electronic and nuclear polarizations of 31P donors in highly enriched 28Si can be obtained by dynamic optical pumping. Polarization of the donor spins is observed using photoluminescence excitation spectroscopy and optical pumping of individual hyperfine components of the 31P bound exciton transition. Previous samples of 28Si used for 31P bound exciton spectroscopy were p-type due to excess boron, while more recently, samples of 31P-doped n-type 28Si with 99.99% isotopic purity became available. The selective pumping and ionization of 31P donors in specific electronic and nuclear spin states has applications in quantum computing, where a highly polarized initial state is required.

Original languageEnglish
Title of host publicationPhysics of Semiconductors - 29th International Conference, ICPS 29
Number of pages2
Publication statusPublished - 2009
Event29th International Conference on Physics of Semiconductors, ICPS 29 - Rio de Janeiro, Brazil
Duration: 2008 Jul 272008 Aug 1

Publication series

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


Other29th International Conference on Physics of Semiconductors, ICPS 29
CityRio de Janeiro


  • Dynamic optical pumping
  • Electronic polarization
  • Nuclear polarization
  • Silicon

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics
  • Ecology
  • Plant Science
  • Physics and Astronomy(all)
  • Nature and Landscape Conservation


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