Precise Access to the Molecular-Frame Complex Recombination Dipole through High-Harmonic Spectroscopy

被引：13

作者：

Schoun, S. B. ^{[1
]}

Camper, A. ^{[1
]}

Salieres, P. ^{[2
]}

Lucchese, R. R. ^{[3
]}

Agostini, P. ^{[1
]}

DiMauro, L. F. ^{[1
]}

机构：

[1] Ohio State Univ, Dept Phys, Columbus, OH 43210 USA

[2] Univ Paris Saclay, CEA Saclay, CNRS, CEA,LIDYL, F-91191 Gif Sur Yvette, France

[3] Texas A&M Univ, Dept Chem, College Stn, TX 77843 USA

来源：

PHYSICAL REVIEW LETTERS | 2017年 / 118卷 / 03期

关键词：

CROSS-SECTIONS; BASIS-SETS; PHOTOIONIZATION; IONIZATION; VALENCE; FIELD; N-2; INTERFERENCE; GENERATION; SPECTRA;

D O I：

10.1103/PhysRevLett.118.033201

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

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 mu m 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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页数：6

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