Excitation and Ionization of Xenon Atoms in Strong UV Laser Fields
Tong Yang, Yi Lian, R. Wang +4 more
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 multi-photon resonance excitation in strong 400 nm laser fields. Finally, a comparative study of Xe and $O_2$ with similar ionization potentials have been performed, showing the suppressed excitation of molecules in strong UV laser fields.
The Journal of Atomic and Molecular Sciences•Aug 1, 2017•0 citations