Phys. Rev. A 82, 013421 (2010) [5 pages]Nonlinear Fourier-transform spectroscopy of D2 using high-order harmonic radiationReceived 18 December 2009; published 28 July 2010 We have determined the multiphoton ionization and dissociation pathways of D2 with the simultaneous irradiation of the high-order harmonic fields and the low-order harmonic fields of Ti:sapphire laser pulses in the visible-vacuum ultraviolet region with the aid of a nonlinear Fourier-transform spectroscopy. By analyzing the interferometric autocorrelation signal of the measured velocity map images of D+, we were able to decompose the measured momentum distribution into three momentum distribution images representing the three distinct dissociation pathways, which are sequentially two-photon absorption processes of D2 via the electronic ground state (X 2Σg+) of D2+ to the first excited state (A 2Σu+), leading to the dissociation into D+ + D. © 2010 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevA.82.013421
DOI:
10.1103/PhysRevA.82.013421
PACS:
33.20.Xx, 33.80.Eh, 82.53.Kp
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