Abstract

The region 3173–11 672 Å of Ar i, originating in a microwave-excited electrodeless source, has been reinvestigated by means of a temperature-controlled Fabry–Perot interferometer in vacuum. There were a total of 307 lines compared with the primary standard, the 6057 Å line of 86Kr. The standard source was a microwave-excited electrodeless tube operated at the triple point of nitrogen. Spacers of 6, 30, 50, and 80 mm were used. The results are listed along with those of previous investigations in chronological order up to and including the most-recent publication of Norlén. In general, our wavelength values are lower than Norlén’s. Most of the observed lines are suitable for use as standards; we identify those that are not suitable because they show doublet structure. Calculated wavelengths based on presently determined level values are also given along with the experimental wavelength values. Particularly for wavelengths greater than 7000 Å, the line sharpness is such that spacers longer than 100 mm may be used in future investigations.

© 1974 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Accurate Energy Levels and Calculated Wavelengths of 86Kr i*

Victor Kaufman and Curtis J. Humphreys
J. Opt. Soc. Am. 59(12) 1614-1628 (1969)

Interferometric Observations in the Spectra of 86Kr

CURTIS J. HUMPHREYS and EDWARD PAUL, JR.
J. Opt. Soc. Am. 60(2) 200-205 (1970)

Wavelengths, Energy Levels, and Pressure Shifts in Mercury 198

Victor Kaufman
J. Opt. Soc. Am. 52(8) 866-870 (1962)

References

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
Login to access OSA Member Subscription

Cited By

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
Login to access OSA Member Subscription

Tables (3)

You do not have subscription access to this journal. Article tables 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
Login to access OSA Member Subscription