Multi-MeV electrons from above-threshold ionization of the neon K-shell

Multi-MeV electrons from above-threshold ionization of the neon K-shell

We present measurements of integrated electron energies produced by above-threshold ionization (ATI) of neon in a laser field with intensity exceeding 10$^{20}$ W/cm$^{2}$. We observe electrons with energy exceeding 10 MeV ejected in the laser forward direction above a threshold intensity of $2 \tim...

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Hauptverfasser: Yandow, A, Ha, T. N, Aniculaesei, C, Smith, H. L, Richmond, C. G, Spinks, M. M, Quevedo, H. J, Bruce, S, Darilek, M, Chang, C, Garcia, D. A, Gaul, E, Donovan, M. E, Hegelich, B. M, Ditmire, T
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Sprache:eng
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Physics - Atomic Physics
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Zusammenfassung:We present measurements of integrated electron energies produced by above-threshold ionization (ATI) of neon in a laser field with intensity exceeding 10$^{20}$ W/cm$^{2}$. We observe electrons with energy exceeding 10 MeV ejected in the laser forward direction above a threshold intensity of $2 \times 10^{20}$ W/cm$^{2}$. We compare to ATI models using both tunneling (ADK-PPT) and barrier suppression ionization and observe the onset of ATI at a higher threshold intensity than predicted by these models.
DOI:10.48550/arxiv.2306.09611