Non-exponential tunneling ionization probability distribution as a function of different laser beam profiles



Título del documento: Non-exponential tunneling ionization probability distribution as a function of different laser beam profiles
Revista: Revista mexicana de física
Base de datos: PERIÓDICA
Número de sistema: 000460662
ISSN: 0035-001X
Autores: 1
2
3
Instituciones: 1University of Kragujevac, Institute for Information Technologies, Kragujevac. Serbia
2University of Kragujevac, Faculty of Science, Kragujevac. Serbia
3University Clinical Center Kragujevac, Department of Nuclear Medicine, Kragujevac. Serbia
Año:
Periodo: Jul-Ago
Volumen: 68
Número: 4
País: México
Idioma: Inglés
Tipo de documento: Artículo
Enfoque: Analítico, teórico
Resumen en inglés 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
Disciplinas: Física y astronomía,
Física
Palabras clave: Decaimiento no exponencial,
Probabilidad de ionización túnel,
Tiempo de tunelización,
Perfiles de rayos láser
Keyword: Physics,
Non-exponential decay,
Tunneling ionization probability,
Tunneling time,
Laser beam profiles
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