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Experimental investigation of strong-field-ionization theories for laser fields from visible to midinfrared frequencies

Title: 

Experimental investigation of strong-field-ionization theories for laser fields from visible to midinfrared frequencies

Authors: 
Yu Hang Lai, Junliang Xu, Urszula B. Szafruga, Bradford K. Talbert, Xiaowei Gong, Kaikai Zhang, Harald Fuest, Matthias F. Kling, Cosmin I. Blaga, Pierre Agostini and Louis F. DiMauro
Abstract: 

Strong-field-ionization yield versus intensity is investigated for various atomic targets (Ne, Ar, Kr, Xe, Na, K, Zn, and Mg) and light polarization from visible to mid-infrared (0.4–4 μm), from multiphoton to tunneling regimes. The experimental findings (normalized yield vs intensity, ratio of circular to linear polarization and saturation intensities) are compared to the theoretical models of Perelomov-Popov-Terent’ev (PPT) and Ammosov-Delone-Krainov (ADK). While PPT is generally satisfactory, ADK validity is found, as expected, to be much more limited.

Year: 
2017
Journal: 
Phys. Rev. A
Keywords: 
Ionization