Polarization measurements on a magnetic quadrupole line in Ne-like barium

E. Takács, E. S. Meyer, J. D. Gillaspy, J. R. Roberts, C. T. Chantler, L. T. Hudson, R. D. Deslattes, C. M. Brown, J. M. Laming, J. Dubau, M. K. Inal

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Abstract

We have measured the absolute polarization of the 2[Formula Presented]-2[Formula Presented][Formula Presented])3s[3/2[Formula Presented] magnetic quadrupole transition in Ne-like barium, excited in an electron-beam ion trap at a variety of energies. We find strong evidence for the existence of resonant excitation processes that are not explained by our collisional-radiative calculations even when the polarization arising from impact excitation is included. At energies well away from where the resonances occur, the agreement between experiment and theory is good.

Original languageEnglish
Pages (from-to)1342-1350
Number of pages9
JournalPhysical Review A - Atomic, Molecular, and Optical Physics
Volume54
Issue number2
DOIs
Publication statusPublished - 1996

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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    Takács, E., Meyer, E. S., Gillaspy, J. D., Roberts, J. R., Chantler, C. T., Hudson, L. T., Deslattes, R. D., Brown, C. M., Laming, J. M., Dubau, J., & Inal, M. K. (1996). Polarization measurements on a magnetic quadrupole line in Ne-like barium. Physical Review A - Atomic, Molecular, and Optical Physics, 54(2), 1342-1350. https://doi.org/10.1103/PhysRevA.54.1342