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

Table 2

Measured isotope shifts in Dy I and Er I.

Element	Wavelength (nm)	Isotope shift (MHz)
Dy		164–162	162–160	160–158	158–156
	401.382	−959.0(16)	−1036.5(18)	−1023.1(28)	−1520.4(36)
	404.597	−375.7(14)	−398.3(15)	−397.9(23)	−530.2(29)
Er		170–168	168–166	166–164	164–162
	400.796	−866.5(15)	−855.2(17)	−859.3(16)	−1028.7(28)