Isotope Shifts in High Lying Levels of Dy I and Er I by High-Resolution UV Laser Spectroscopy

الملخص EN

High-resolution atomic-beam ultraviolet (UV) laser spectroscopy in Dy I and Er I has been performed.

Isotope shifts have been measured for two transitions in Dy I and one transition in Er I.

Specific mass shifts and field shifts have been derived for the studied transitions, and large differences between the two 4f106s2–4f106s6p transitions in Dy I have been found.

From the derived specific mass shifts and field shifts, configuration mixing at the upper levels of transitions has been discussed.