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

Table 3

Determined SMS factors 𝑀_{𝑖𝑆𝑀𝑆} and electronic factors 𝐹_𝑖 in Dy I and Er I.

Element	Wavelength (nm)	𝑀𝑖SMS (10^5 MHz)	𝐹𝑖(GHz/fm^2)
Dy	401.382	−1.5(30)	−8.21(45)
	404.597	−20.4(16)	−2.12(13)
Er	400.796	−13.4(62)	−7.86(53)