Abstract

Photoelectron spectra (PES) of the atom are investigated in a Debye plasma environment using an intense, linearly polarized femtosecond (fs) pulsed laser. In the strong field approximation, for a single active electron, the three-dimensional nonrelativistic time-dependent Schrödinger equation is solved numerically by the Crank–Nicolson method. PES is investigated for different Debye lengths (5[Formula: see text]a.u.,10[Formula: see text]a.u. and 15[Formula: see text]a.u.) using the infinite surface flux method, and a shift in the peak positions is observed. PES in the plasma environment for various laser pulse cycles ([Formula: see text], 20 and 30) is also analyzed. Momentum-resolved PES shows the increase in the radius of the above-threshold ionization (ATI) rings due to the plasma screening effect.

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Year
2025
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A. K. Sharma, Manisha Tyagi, Man Mohan et al. (2025). Photoelectron spectra of atom in debye plasma using femtosecond laser. International Journal of Modern Physics B . https://doi.org/10.1142/s0217979226500141

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DOI
10.1142/s0217979226500141