Precise Access to the Molecular-Frame Complex Recombination Dipole through High-Harmonic Spectroscopy
Journal Article
·
· Physical Review Letters
- The Ohio State Univ., Columbus, OH (United States). Dept. of Physics
- Alternative Energies and Atomic Energy Commission (CEA), Saclay (France). Interactions, Dynamics and Lasers Lab. (LIDYL)
- Texas A & M Univ., College Station, TX (United States). Dept. of Chemistry
In this paper, we report on spectral intensity and group delay measurements of the highest-occupied molecular-orbital (HOMO) recombination dipole moment of $${\mathrm{N}}_{2}$$ in the molecular-frame using high harmonic spectroscopy. We take advantage of the long-wavelength $$1.3\text{ }\text{ }{\mu}\mathrm{m}$$ driving laser to isolate the HOMO in the near threshold region, 19–67 eV. Finally, 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.
- Research Organization:
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Basic Energy Sciences (BES); National Center for Scientific Research (CNRS) International Project of Scientific Cooperation (PICS) (France)
- Grant/Contract Number:
- FG02-04ER15614; FG02-06ER15833; 5460
- OSTI ID:
- 1461115
- Alternate ID(s):
- OSTI ID: 1341314
- Journal Information:
- Physical Review Letters, Vol. 118, Issue 3; ISSN 0031-9007
- Publisher:
- American Physical Society (APS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
Cited by: 14 works
Citation information provided by
Web of Science
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