Computer simulation of the helium line profiles under laser excitation in near-resonance regions

Elena V. Koryukina

doi:10.1117/12.3007347

2 November 2023 Computer simulation of the helium line profiles under laser excitation in near-resonance regions

Elena V. Koryukina

Proceedings Volume 12920, XVI International Conference on Pulsed Lasers and Laser Applications; 1292009 (2023) https://doi.org/10.1117/12.3007347
Event: XVI International Conference on Pulsed Lasers and Laser Applications, 2023, Tomsk, Russian Federation

Abstract

The spectral line profiles of helium atoms in laser fields are simulated within the framework of the method based on the numerical solution of the non-stationary Schrödinger equation. The proposed method is free from limitations of perturbation theory and makes it possible to calculate the emission spectra of atoms both under non-resonant and resonant excitation by the electric field. The algorithm of this method is implemented in the StarkD software package written in FORTRAN and Maple. Within the framework of the proposed method, the behavior of the helium spectral line profiles is studied under changing electric field frequency in the range of 10⁵ – 10⁷ MHz, which is typical of lasers. A comparative analysis of the behavior of the helium spectral line profiles in resonances and interresonance regions is carried out. Practical applications of the obtained theoretical results are proposed.

Citation Download Citation

Elena V. Koryukina "Computer simulation of the helium line profiles under laser excitation in near-resonance regions", Proc. SPIE 12920, XVI International Conference on Pulsed Lasers and Laser Applications, 1292009 (2 November 2023); https://doi.org/10.1117/12.3007347

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