Resumen

MILADINOVIć, T. B.; DANILOVIć, N.  y  JEREMIć, M. Z.. Non-exponential tunneling ionization probability distribution as a function of different laser beam profiles. Rev. mex. fis. [online]. 2022, vol.68, n.4, 040401.  Epub 19-Mayo-2023. ISSN 0035-001X.  https://doi.org/10.31349/revmexfis.68.040401.

In this paper, we discussed the probability distribution of exponential and non-exponential tunneling ionization of atoms, taking into account that the tunneling is not instantaneous, but requires a very short time interval. We also investigated how different laser beam profiles affected the probability distribution. These physical situations were analyzed for the valence electron of a potassium atom exposed to a strong laser field in a wide range of intensities (1012 - 1015 W/cm2). We used the ADK theory formalism to compute probability distributions. The results demonstrate that the probability distribution in the non-exponential mode has a significantly lower value than in the exponential mode, calculated under the same conditions. We showed that various laser beam profiles on these probability distributions produce different tunneling time intervals.

Palabras llave : Non-exponential decay; tunneling ionization probability; tunneling time; laser beam profiles.