Abstract:Neutral Rydberg state excitation in strong UV laser fields of Xe atoms has been studied and compared with direct ionization. The yields of both strong-field excitation and ionization have been measured as a function of UV laser intensity and ellipticity. The underlying physical mechanism has been discussed based on the experimental results, indicating that the Rydberg states are populated via multiphoton resonance excitation in strong 400 nm laser fields. Finally, a comparative study of Xe and O 2 with similar… Show more
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