Precise Access to the Molecular-Frame Complex Recombination Dipole through High-Harmonic Spectroscopy.
نویسندگان
چکیده
We report on spectral intensity and group delay measurements of the highest-occupied molecular-orbital (HOMO) recombination dipole moment of N_{2} in the molecular-frame using high harmonic spectroscopy. We take advantage of the long-wavelength 1.3 μm driving laser to isolate the HOMO in the near threshold region, 19-67 eV. The precision of our group delay measurements reveals previously unseen angle-resolved spectral features associated with autoionizing resonances, and allows quantitative comparison with cutting-edge correlated 8-channel photoionization dipole moment calculations.
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ورودعنوان ژورنال:
- Physical review letters
دوره 118 3 شماره
صفحات -
تاریخ انتشار 2017