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キーワード:
32.80.Rm, 32.80.Fb, 32.90.+a, 42.50.Hz
要旨:
Electron emission for single ionization of Ne by 25 fs, 1.0 PW/cm2 laser pulses at 800 nm has been investigated in a kinematically complete experiment using a "reaction microscope." Mapping the complete final state momentum space with high resolution, a distinct local minimum is observed at Pe = 0, where Pe is the electron momentum parallel to the laser polarization. Whereas tunneling theory predicts a maximum at zero momentum, our findings are in good agreement with recent semiclassical predictions which were interpreted to be due to "recollision."
