Laser spectroscopy on the Stark effect of the level of He I
- 14 June 1997
- journal article
- Published by IOP Publishing in Journal of Physics B: Atomic, Molecular and Optical Physics
- Vol. 30 (11) , 2581-2590
- https://doi.org/10.1088/0953-4075/30/11/010
Abstract
In electric fields , shift and splitting of the line of He I were measured spectroscopically by crossing a beam of metastable He atoms with a frequency-doubled cw Ti:sapphire laser beam. We deduced the difference of the scalar polarizabilities, the tensor polarizability and the energy separation of closest approach of the Stark sublevels with m = 0 and negative reflection parity at . The polarizabilities agree with calculated values. By comparing the measured energy separation with theory, we deduced that the scalar polarizabilities of the and differ slightly by .Keywords
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