Abstract
Quantum beats between the fine structure levels of highly excitedn 2 D levels of sodium atoms have been measured by investigating the field electrons. The states were populated by stepwise excitation with two dye lasers and an electric field pulse was applied a certain time after the laser excitation. The quantum beat signal is observed when the time delay between excitation and ionization is varied. The fine structure splitting forn=21 to 31 has been measured.
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The support of this work by the Deutsche Forschungsgemeinschaft is gratefully acknowledged.
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Leuchs, G., Walther, H. Quantum interference effects in field ionization: Application to the measurement of the fine structure splitting of highly excited Na2 D states. Z Physik A 293, 93–101 (1979). https://doi.org/10.1007/BF01559750
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DOI: https://doi.org/10.1007/BF01559750