Two-photon excitation of atoms by ultrashort electromagnetic pulses in a discrete spectrum

TL;DR

This paper theoretically analyzes two-photon atomic excitation using ultrashort electromagnetic pulses, focusing on hydrogen and sodium atoms, to understand excitation mechanisms with femto- and subfemtosecond pulse durations.

Contribution

It introduces a theoretical framework for two-photon excitation of atoms by ultrashort pulses in discrete spectra, specifically applied to hydrogen and sodium.

Findings

Effective excitation of hydrogen and sodium atoms demonstrated.

Insights into pulse duration effects on excitation efficiency.

Potential applications in ultrafast atomic manipulation.

Abstract

The present work is dedicated to the theoretical analysis of two-photon excitation of atoms in a discrete energy spectrum by ultrashort electromagnetic pulses of femto- and subfemtosecond ranges of durations. As examples, excitation of hydrogen and sodium atoms from the ground state to excited states with a zero orbital moment is considered.