Phys. Rev. Lett. 64, 1883–1886 (1990)Softening of the H2+ molecular bond in intense laser fieldsReceived 26 October 1989; published in the issue dated 16 April 1990 We report a new kind of multiphoton dissociation in intense laser fields. H2+ molecular ions were formed in above-threshold ionization of H2 gas by intense 532-nm, 100-ps laser pulses. Observations suggest that multiphoton couplings soften the molecular bond, resulting in dissociation at laser intensities over 50 TW/cm2. The ion-dissociation spectra have multiple peaks caused by multiphoton transitions during dissociation of H2+. © 1990 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.64.1883
DOI:
10.1103/PhysRevLett.64.1883
PACS:
33.80.Wz
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