Study of non-hydrogenic near degeneracies between m sublevels in the linear Stark effect of sodium Rydberg states
- 28 August 1984
- journal article
- Published by IOP Publishing in Journal of Physics B: Atomic and Molecular Physics
- Vol. 17 (16) , 3217-3228
- https://doi.org/10.1088/0022-3700/17/16/005
Abstract
The authors have studied the linear Stark effect of sodium Rydberg states by subDoppler high resolution spectroscopy using a continuous stepwise excitation of sodium atoms (3S to 3P to 3D to nF) with the help of a CW dye laser and of two single-mode diode lasers. They have shown a quasidegeneracy of m=0, mod m mod =1 and mod m mod =2 states, revealing an unexpected non-hydrogenic behaviour of Stark states in this linear regime. A simple model, based on a 'truncated Stark basis' approach accounts for this feature, which is common to all alkali atom Rydberg states.Keywords
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