Optical detection and ionization of donors in specific electronic and nuclear spin states

A. Yang, M. Steger, D. Karaiskaj, M. L.W. Thewalt, M. Cardona, K. M. Itoh, H. Riemann, N. V. Abrosimov, M. F. Churbanov, A. V. Gusev, A. D. Bulanov, A. K. Kaliteevskii, O. N. Godisov, P. Becker, H. J. Pohl, J. W. Ager, E. E. Haller

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Abstract

We resolve the remarkably sharp bound exciton transitions of highly enriched Si28 using a single-frequency laser and photoluminescence excitation spectroscopy, as well as photocurrent spectroscopy. Well-resolved doublets in the spectrum of the P31 donor reflect the hyperfine coupling of the electronic and nuclear donor spins. The optical detection of the nuclear spin state, and selective pumping and ionization of donors in specific electronic and nuclear spin states, suggests a number of new possibilities which could be useful for the realization of silicon-based quantum computers.

Original languageEnglish
Article number227401
JournalPhysical review letters
Volume97
Issue number22
DOIs
Publication statusPublished - 2006 Jan 1

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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    Yang, A., Steger, M., Karaiskaj, D., Thewalt, M. L. W., Cardona, M., Itoh, K. M., Riemann, H., Abrosimov, N. V., Churbanov, M. F., Gusev, A. V., Bulanov, A. D., Kaliteevskii, A. K., Godisov, O. N., Becker, P., Pohl, H. J., Ager, J. W., & Haller, E. E. (2006). Optical detection and ionization of donors in specific electronic and nuclear spin states. Physical review letters, 97(22), [227401]. https://doi.org/10.1103/PhysRevLett.97.227401