Journal
JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS
Volume 47, Issue 20, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/0953-4075/47/20/204019
Keywords
tunnel ionization; multiphoton ionization; Rydberg states
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Funding
- Key Foundation of the Ministry of Education of China [211117]
- foundation of Hubei Co-Innovation Center for Utilization of BiomassWaste [XTCX004]
- Japan Society for the Promotion of Science
- HA-PACS Project for advanced interdisciplinary computational sciences by exa-scale computing technology
- Chemical Sciences, Geosciences and Biosciences Division, Office of Basic Energy Sciences, Office of Science, US Department of Energy
- Grants-in-Aid for Scientific Research [26400415, 24540421] Funding Source: KAKEN
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We study the population of Rydberg excited states in the strong field interaction of atomic hydrogen with 800, 1200 and 1600 nm laser pulses. The total excitation probability displays strong out-of-phase modulation with respect to the weak modulation in the total ionization probability as the laser intensity is increased. The results are explained in terms of channel closing, to demonstrate multiphoton ionization features in the strong tunnel ionization regime. We also explain the stability of high Rydberg states in strong laser fields in contrast to other previous ionization stabilization models.
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