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8 July 1993 Observation of nonsequential ionization of helium and its impact on intensity monitoring
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Proceedings Volume 1860, Short-Pulse High-Intensity Lasers and Applications II; (1993) https://doi.org/10.1117/12.147579
Event: OE/LASE'93: Optics, Electro-Optics, and Laser Applications in Scienceand Engineering, 1993, Los Angeles, CA, United States
Abstract
We have measured the ion yields for helium and neon ionized by 120 femtosecond, 614 nanometer laser pulses with intensities up to 1016 watts per square centimeter. We have found that the He II and Ne II data exhibit features incompatible with standard nonresonant sequential ionization. These features reduce the usefulness of optical field ionization for monitoring laser intensity. For the experiment, we expect dynamic resonances to have little effect on the ionization, and we attribute the features to nonsequential ionization based on the simultaneous saturation of the features and the singly ionized charge states.
© (1993) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
David N. Fittinghoff, Paul Robert Bolton, Britton Chang, and Kenneth C. Kulander "Observation of nonsequential ionization of helium and its impact on intensity monitoring", Proc. SPIE 1860, Short-Pulse High-Intensity Lasers and Applications II, (8 July 1993); https://doi.org/10.1117/12.147579
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