By using a supersonic beam of metastable Ne* atoms and a single-mode dye laser we determine the 2p53s-3p specific mass shift of the 20,22Ne isotopes by means of optical spectroscopy. The resulting value, on the basis of a systematic measurement of transition isotope shifts at different transition energies between 15,300 and 17,000 cm-1, is 473 ± 2.5 MHz. This is ~ 50 MHz larger than the best-known theoretical value.
© 1992 Optical Society of America
E. Konz, T. Kraft, and H.-G. Rubahn, "Optical determination of the 20,22Ne 3s-3p specific mass shift," Appl. Opt. 31, 4995-4997 (1992)