{"paper":{"title":"Resonant 3--photon ionization of hydrogenic atoms by non-monochromatic laser field","license":"","headline":"","cross_cats":["physics.acc-ph"],"primary_cat":"physics.atom-ph","authors_text":"((1)Physikalisches Institut der Universit\\\"at Heidelberg (2)St.Petersburg State Technical University (3) Mathematical Institute, 2, 3), K. Jungmann (1), R. Santra (1), University of Oxford), V Yakhontov (1","submitted_at":"1998-05-15T14:34:02Z","abstract_excerpt":"We present ionization probability and line shape calculations for the two-step 3-photon ionization process, $1S \\stackrel{2\\hbar \\omega}{\\longrightarrow}2S \\stackrel{\\hbar \\omega}{\\longrightarrow}\\epsilon P $, of the ground state of hydrogenic atoms in a non-monochromatic laser field with a time--dependent amplitude. Within the framework of a three--level model, the {\\it AC Stark} shifts and non-zero ionization rates of all states involved were taken into account together with spatial and temporal inhomogeneities of the laser signal. In contrast with the usual perturbative technique, the time "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"physics/9805022","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}