We experimentally investigate the Rydberg state excitations(RSEs) of noble gas atoms,He,Ar and Xe,in an800-nm 50-fs strong laser field,by using the mass resolved pulsed electric field ionization method combined with the time-of-flight mass spectrometer.We measure the yields of the atomic RSE at different laser intensities and ellipticities,and compare the results with those of the nonsequential double ionization(NSDI) in strong laser fields.Our study shows that like that of NSDI,the yield of the atomic RSE ...
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