Ashish Sharma, Manisha Tyagi, Man Mohan, Alok Kumar Singh Jha
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Plasma screening effects on the above-threshold ionization spectra of argon atom in an intense laser field
Plasma screening effects on the above-threshold ionization (ATI) of the argon atom in Gaussian windowed soft-core Coulomb (GSC) potential is investigated using the time-dependent Schrödinger equation (TDSE), by employing the Crank–Nicolson numerical method. The variation in the ground-state population and ionization probabilities with time is calculated in the Debye plasma environment. The effect of laser intensity variations on the ATI spectra of argon atom is calculated, and ATI spectra show a similar pattern of redshift, as discussed in the available literature. Plasma screening effects on the population of ground state, ionization probabilities, and ATI spectra of argon atom are studied in GSC potential for the first time, at different laser intensities and Debye lengths.
期刊介绍：
The European Physical Journal D (EPJ D) presents new and original research results in:
Atomic Physics;
Molecular Physics and Chemical Physics;
Atomic and Molecular Collisions;
Clusters and Nanostructures;
Plasma Physics;
Laser Cooling and Quantum Gas;
Nonlinear Dynamics;
Optical Physics;
Quantum Optics and Quantum Information;
Ultraintense and Ultrashort Laser Fields.
The range of topics covered in these areas is extensive, from Molecular Interaction and Reactivity to Spectroscopy and Thermodynamics of Clusters, from Atomic Optics to Bose-Einstein Condensation to Femtochemistry.
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