TY - JOUR
T1 - ISOTOPE SHIFT IN THE NEON GROUND-STATE BY EXTREME-ULTRAVIOLET LASER SPECTROSCOPY AT 74 NM
AU - Eikema, K.S.E.
AU - Ubachs, W.M.G.
AU - Hogervorst, W.
PY - 1994
Y1 - 1994
N2 - Narrow-band extreme-ultraviolet (xuv) radiation in the range 73.5-75.5 nm has been produced in Xe by generating the third harmonic of light from a frequency-doubled, pulsed blue-dye laser. In a one-xuv-photon plus one-uv-photon ionization process both 2p6-2p53s[3/2]1 and 2p6-2p53s'[1/2]1 transitions in Ne20 and Ne22 were observed. Frequencies were calibrated using a tellurium absorption spectrum of the fundamental blue light. Frequencies of 134 459.33(5) cm-1 for the 2p6-2p53s[3/2]1 and 135 888.73(5) cm-1 for the 2p6-2p53s'[1/2]1 transition in Ne20 are obtained. In both transitions the isotope shift (20Ne-22Ne) was measured. The values are -0.014(3) cm-1 and +0.003(3) cm-1, respectively. Combined with existing values for the 3s[3/2]1 and 3s'[1/2]1 level shifts, a value for the ground-state specific mass shift of 9.54(15) GHz is deduced, in good agreement with a theoretical value of 10.1 GHz. © 1994 The American Physical Society.
AB - Narrow-band extreme-ultraviolet (xuv) radiation in the range 73.5-75.5 nm has been produced in Xe by generating the third harmonic of light from a frequency-doubled, pulsed blue-dye laser. In a one-xuv-photon plus one-uv-photon ionization process both 2p6-2p53s[3/2]1 and 2p6-2p53s'[1/2]1 transitions in Ne20 and Ne22 were observed. Frequencies were calibrated using a tellurium absorption spectrum of the fundamental blue light. Frequencies of 134 459.33(5) cm-1 for the 2p6-2p53s[3/2]1 and 135 888.73(5) cm-1 for the 2p6-2p53s'[1/2]1 transition in Ne20 are obtained. In both transitions the isotope shift (20Ne-22Ne) was measured. The values are -0.014(3) cm-1 and +0.003(3) cm-1, respectively. Combined with existing values for the 3s[3/2]1 and 3s'[1/2]1 level shifts, a value for the ground-state specific mass shift of 9.54(15) GHz is deduced, in good agreement with a theoretical value of 10.1 GHz. © 1994 The American Physical Society.
U2 - 10.1103/PhysRevA.49.803
DO - 10.1103/PhysRevA.49.803
M3 - Article
SN - 1050-2947
VL - 49
SP - 803
EP - 808
JO - Physical Review A. Atomic, Molecular and Optical Physics
JF - Physical Review A. Atomic, Molecular and Optical Physics
IS - 2
ER -