OSA's Digital Library

Journal of the Optical Society of America

Journal of the Optical Society of America

  • Vol. 72, Iss. 4 — Apr. 1, 1982
  • pp: 476–492

Spectrum and energy levels of triply ionized yttrium (Y IV)

Gabriel L. Epstein and Joseph Reader  »View Author Affiliations


JOSA, Vol. 72, Issue 4, pp. 476-492 (1982)
http://dx.doi.org/10.1364/JOSA.72.000476


View Full Text Article

Acrobat PDF (1776 KB)





Browse Journals / Lookup Meetings

Browse by Journal and Year


   


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools

Share
Citations

Abstract

The spectrum of Y IV was observed in the region from 300 to 5000 Å with the 10.7-m normal-incidence vacuum spectrograph and the 10.7-m Eagle spectrograph in air at the National Bureau of Standards. The light source was a sliding spark discharge. About 560 lines were classified as transitions between 129 energy levels. The observed level system (Kr I isoelectronic sequence) includes nearly all levels of the 4s24p6, 4s24p55s, 6s, 7s, 4d, 5d, 6d, 4ƒ, 5ƒ, 5g, 6g, and 4s4p64d configurations. About 190 lines remain unclassified. All observed configurations have been theoretically interpreted. The energy parameters determined by least-squares fits to the observed levels are compared with Hartree-Fock calculations. The ionization energy as derived from the 4p5ng (n = 5, 6) levels is 488 830 ± 20 cm-1 (60.608 ± 0.002 eV).

© 1982 Optical Society of America

Citation
Gabriel L. Epstein and Joseph Reader, "Spectrum and energy levels of triply ionized yttrium (Y IV)," J. Opt. Soc. Am. 72, 476-492 (1982)
http://www.opticsinfobase.org/josa/abstract.cfm?URI=josa-72-4-476

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited