Zeeman Effect of Sm Atoms by High-Resolution Diode-Laser Spectroscopy
Figure 2
Observed fluorescence spectrum of the 4f 66s 2 –4f 66s6p transition at 680.30 nm in Sm I. Peaks of the even-mass isotopes are labeled with their atomic symbol. Other peaks are hyperfine structure peaks of the two odd-mass isotopes 147Sm and 149Sm.