Quasi-Landau resonances in the spectra of rubidium Rydberg atoms in crossed electric and magnetic fields
- 1 August 1991
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review A
- Vol. 44 (3) , 1898-1909
- https://doi.org/10.1103/physreva.44.1898
Abstract
This paper reports on the investigation of excitation spectra of rubidium Rydberg atoms in crossed electric and magnetic fields. The quasi-Landau spectra were evaluated and their Fourier transforms calculated. The scaled spectral scans used for this purpose were obtained by changing the electric and magnetic fields as well as the laser frequency in an appropriate way. The observed resonances could be explained completely by semiclassical orbits. Only orbits showing overlap with the ground-state wave function are observed. The polarization dependence of certain components in the Fourier spectra can be explained by the shape of the semiclassical orbits. The electric dipole moments of the atoms resulting from the shift of the quasi-Landau structures in a changing electric field agree quite well with the corresponding semiclassical orbits.Keywords
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